Package Instance
Lookup for vulnerable packages by Package URL.
GET /api/packages/1076540?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/1076540?format=api", "purl": "pkg:rpm/redhat/dotnet9-0-main@9.0.116-1?arch=hum1", "type": "rpm", "namespace": "redhat", "name": "dotnet9-0-main", "version": "9.0.116-1", "qualifiers": { "arch": "hum1" }, "subpath": "", "is_vulnerable": true, "next_non_vulnerable_version": null, "latest_non_vulnerable_version": null, "affected_by_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/30375?format=api", "vulnerability_id": "VCID-4zux-cmaa-w3gd", "summary": "Microsoft.Build.Tasks.Core .NET Spoofing Vulnerability\n# Microsoft Security Advisory CVE-2025-26646: .NET Spoofing Vulnerability\n\n## <a name=\"executive-summary\"></a>Executive summary\n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in .NET 9.0.xxx and .NET 8.0.xxx SDK. This advisory also provides guidance on what developers can do to update their applications to address this vulnerability.\n\nA vulnerability exists in .NET SDK or MSBuild applications where external control of file name or path allows an unauthorized attacked to perform spoofing over a network.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/356\n\n### <a name=\"mitigation-factors\"></a>Mitigation factors\n\nProjects which do not utilize the [DownloadFile](https://learn.microsoft.com/visualstudio/msbuild/downloadfile-task) build task are not susceptible to this vulnerability.\n\n## <a name=\"affected-software\"></a>Affected software\n\n* Any installation of .NET 9.0.105 SDK, .NET 9.0.203 SDK or earlier.\n* Any installation of .NET 8.0.115 SDK, .NET 8.0.311 or .NET 8.0.312 SDK, .NET 8.0.408 or .NET 8.0.409 SDK or earlier.\n\n## <a name=\"affected-packages\"></a>Affected Packages\nThe vulnerability affects any Microsoft .NET Core project if it uses any of affected packages versions listed below\n\nPackage name | Affected version | Patched version\n------------ | ---------------- | -------------------------\n[Microsoft.Build.Tasks.Core](https://www.nuget.org/packages/Microsoft.Build.Tasks.Core) |>= 15.8.166, <=15.9.20<br />>=16.0.461, <= 16.11.0<br />>= 17.0.0, <= 17.8.3<br/>>= 17.9.5, <= 17.10.4<br />17.11.4<br />17.12.6 <br />17.13.9 | 15.9.30<br />16.11.6<br />17.8.29<br/>17.10.29<br />17.12.36<br />17.13.26 <br />17.14.8\n\n## Advisory FAQ\n\n### <a name=\"how-affected\"></a>How do I know if I am affected?\n\nIf you have a .NET SDK with a version listed, or an affected package listed in [affected software](#affected-packages) or [affected packages](#affected-software), you're exposed to the vulnerability.\n\n### <a name=\"how-fix\"></a>How do I fix the issue?\n\n1. To fix the issue please install the latest version of .NET 9.0 SDK or .NET 8.0 SDK. If you have installed one or more .NET SDKs through Visual Studio, Visual Studio will prompt you to update Visual Studio, which will also update your .NET SDKs.\n2. If your application references the vulnerable package, update the package reference to the patched version.\n\n* You can list the versions you have installed by running the `dotnet --info` command. You will see output like the following;\n\n```\n.NET SDK:\n Version: 9.0.100\n Commit: 59db016f11\n Workload version: 9.0.100-manifests.3068a692\n MSBuild version: 17.12.7+5b8665660\n\nRuntime Environment:\n OS Name: Mac OS X\n OS Version: 15.2\n OS Platform: Darwin\n RID: osx-arm64\n Base Path: /usr/local/share/dotnet/sdk/9.0.100/\n\n.NET workloads installed:\nThere are no installed workloads to display.\nConfigured to use loose manifests when installing new manifests.\n\nHost:\n Version: 9.0.0\n Architecture: arm64\n Commit: 9d5a6a9aa4\n\n.NET SDKs installed:\n 9.0.100 [/usr/local/share/dotnet/sdk]\n\n.NET runtimes installed:\n Microsoft.AspNetCore.App 9.0.0 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]\n Microsoft.NETCore.App 9.0.0 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]\n\nOther architectures found:\n x64 [/usr/local/share/dotnet]\n registered at [/etc/dotnet/install_location_x64]\n\nEnvironment variables:\n Not set\n\nglobal.json file:\n Not found\n\nLearn more:\n https://aka.ms/dotnet/info\n\nDownload .NET:\n https://aka.ms/dotnet/download\n```\n\n* If you're using .NET 9.0, you should download and install the appropriate SDK: `.NET 9.0.300` for Visual Studio 2022 v17.14, `.NET 9.0.204` for v17.13, or `.NET 9.0.106` for v17.12. Download from https://dotnet.microsoft.com/download/dotnet-core/9.0.\n\n* If you're using .NET 8.0, you should download and install the appropriate SDK: `.NET 8.0.410` for Visual Studio 2022 v17.11, `.NET 8.0.313` for v17.10, or `.NET 8.0.116` for v17.8. Download from https://dotnet.microsoft.com/download/dotnet-core/8.0.\n\nOnce you have installed the updated SDK, restart your apps for the update to take effect.\n\n## Other Information\n\n### Reporting Security Issues\n\nIf you have found a potential security issue in .NET 8.0 or .NET 9.0, please email details to secure@microsoft.com. Reports may qualify for the Microsoft .NET Core & .NET 5 Bounty. Details of the Microsoft .NET Bounty Program including terms and conditions are at <https://aka.ms/corebounty>.\n\n### Support\n\nYou can ask questions about this issue on GitHub in the .NET GitHub organization. The main repos are located at https://github.com/dotnet/aspnetcore. The Announcements repo (https://github.com/dotnet/Announcements) will contain this bulletin as an issue and will include a link to a discussion issue. You can ask questions in the linked discussion issue.\n\n### Disclaimer\n\nThe information provided in this advisory is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-26646.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.0", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-26646.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2025-26646", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00236", "scoring_system": "epss", "scoring_elements": "0.46352", "published_at": "2026-05-05T12:55:00Z" }, { "value": "0.00236", "scoring_system": "epss", "scoring_elements": "0.465", "published_at": "2026-04-26T12:55:00Z" }, { "value": "0.00236", "scoring_system": "epss", "scoring_elements": "0.46489", "published_at": "2026-04-24T12:55:00Z" }, { "value": "0.00236", "scoring_system": "epss", "scoring_elements": "0.46508", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.00236", "scoring_system": "epss", "scoring_elements": "0.46498", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.00236", "scoring_system": "epss", "scoring_elements": "0.46526", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.00236", "scoring_system": "epss", "scoring_elements": "0.46479", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.00236", "scoring_system": "epss", "scoring_elements": "0.46503", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.00236", "scoring_system": "epss", "scoring_elements": "0.46448", "published_at": "2026-04-29T12:55:00Z" }, { "value": "0.00236", "scoring_system": "epss", "scoring_elements": "0.46561", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.00236", "scoring_system": "epss", "scoring_elements": "0.46564", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.00236", "scoring_system": "epss", "scoring_elements": "0.46507", "published_at": "2026-04-13T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2025-26646" }, { "reference_url": "https://github.com/dotnet/announcements/issues/356", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.0", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/dotnet/announcements/issues/356" }, { "reference_url": "https://github.com/dotnet/msbuild", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.0", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/dotnet/msbuild" }, { "reference_url": "https://github.com/dotnet/msbuild/issues/11846", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.0", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/dotnet/msbuild/issues/11846" }, { "reference_url": "https://github.com/dotnet/msbuild/security/advisories/GHSA-h4j7-5rxr-p4wc", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.0", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H" }, { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/dotnet/msbuild/security/advisories/GHSA-h4j7-5rxr-p4wc" }, { "reference_url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26646", "reference_id": "", "reference_type": "", "scores": [ { "value": "8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C" }, { "value": "8.0", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-05-14T15:57:11Z/" } ], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26646" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-26646", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.0", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-26646" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=2365317", "reference_id": "2365317", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2365317" }, { "reference_url": "https://github.com/advisories/GHSA-h4j7-5rxr-p4wc", "reference_id": "GHSA-h4j7-5rxr-p4wc", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-h4j7-5rxr-p4wc" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2025:7571", "reference_id": "RHSA-2025:7571", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2025:7571" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2025:7589", "reference_id": "RHSA-2025:7589", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2025:7589" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2025:7598", "reference_id": "RHSA-2025:7598", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2025:7598" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2025:7599", "reference_id": "RHSA-2025:7599", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2025:7599" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2025:7600", "reference_id": "RHSA-2025:7600", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2025:7600" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2025:7601", "reference_id": "RHSA-2025:7601", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2025:7601" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2025:7603", "reference_id": "RHSA-2025:7603", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2025:7603" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2026:9080", "reference_id": "RHSA-2026:9080", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2026:9080" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2026:9205", "reference_id": "RHSA-2026:9205", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2026:9205" }, { "reference_url": "https://usn.ubuntu.com/7509-1/", "reference_id": "USN-7509-1", "reference_type": "", "scores": [], "url": "https://usn.ubuntu.com/7509-1/" } ], "fixed_packages": [], "aliases": [ "CVE-2025-26646", "GHSA-h4j7-5rxr-p4wc" ], "risk_score": 4.0, "exploitability": "0.5", "weighted_severity": "8.0", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-4zux-cmaa-w3gd" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/352042?format=api", "vulnerability_id": "VCID-cc3y-8y5n-v7cq", "summary": "Microsoft Security Advisory CVE-2026-26171 – .NET Denial of Service Vulnerability\n## Executive Summary: \n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in System.Security.Cryptography.Xml. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nA vulnerability exists in EncryptedXml class where uncontrolled resource consumption can give an attacker to the ability to perform a Denial of Service attack.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/xxxxx\n\n## CVSS Details\n\n- **Version:** 3.1\n- **Severity:** High\n- **Score:** 7.5\n- **Vector:** 7.5: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H E:U/RL:O/RC:C\n- **Weakness:** CWE-400 CWE-611: Uncontrolled Resource Consumption Improper Restriction of XML External Entity Reference\n\n## Affected Platforms\n\n- **Platforms:** All\n- **Architectures:** All\n\n## <a name=\"affected-packages\"></a>Affected Packages\nThe vulnerability affects any Microsoft .NET project if it uses any of affected packages versions listed below\n\n### <a name=\".NET 10\"></a>.NET 10\nPackage name | Affected version | Patched version\n------------ | ---------------- | -------------------------\n[System.Security.Cryptography.xml](https://www.nuget.org/packages/System.Security.Cryptography.Xml) | >=10.0.0, <=10.0.5; | 10.0.6\n\n### <a name=\".NET 9\"></a>.NET 9\nPackage name | Affected version | Patched version\n------------ | ---------------- | -------------------------\n[System.Security.Cryptography.xml](https://www.nuget.org/packages/System.Security.Cryptography.Xml) | >=9.0.0, <=9.0.14; | 9.0.15\n\n### <a name=\".NET 8\"></a>.NET 8\nPackage name | Affected version | Patched version\n------------ | ---------------- | -------------------------\n[System.Security.Cryptography.xml](https://www.nuget.org/packages/System.Security.Cryptography.Xml) | >=8.0.0, <=8.0.2; | 8.0.3\n\n## Advisory FAQ\n\n### <a name=\"how-affected\"></a>How do I know if I am affected?\n\nIf using an affected package listed in [affected packages](#affected-packages), you're exposed to the vulnerability.\n\n### <a name=\"how-fix\"></a>How do I fix the issue?\n\nTo update the Using the System.Security.Cryptography.Xml NuGet package, use one of the following methods:\n\nNuGet Package Manager UI in Visual Studio:\n- Open your project in Visual Studio.\n- Right-click on your project in Solution Explorer and select \"Manage NuGet Packages...\" or navigate to \"Project > Manage NuGet Packages\".\n- In the NuGet Package Manager window, select the \"Updates\" tab. This tab lists packages with available updates from your configured package sources.\n- Select the package(s) you wish to update. You can choose a specific version from the dropdown or update to the latest available version.\n- Click the \"Update\" button.\n\nUsing the NuGet Package Manager Console in Visual Studio:\n- Open your project in Visual Studio.\n- Navigate to \"Tools > NuGet Package Manager > Package Manager Console\".\n- To update a specific package to its latest version, use the following Update-Package command:\n\n```Update-Package -Id System.Security.Cryptography.xml```\n\nUsing the .NET CLI (Command Line Interface):\n- Open a terminal or command prompt in your project's directory.\n- To update a specific package to its latest version, use the following add package command:\n\n```dotnet add package System.Security.Cryptography.Xml```\n\nOnce you have updated the nuget package reference you must recompile and deploy your application. Additionally we recommend you update your runtime and/or SDKs, but it is not necessary to patch the vulnerability.\n\n## Other Information\n\n### Reporting Security Issues\n\nIf you have found a potential security issue in a supported version of .NET, please report it to the Microsoft Security Response Center (MSRC) via the [MSRC Researcher Portal](https://msrc.microsoft.com/report/vulnerability/new). Further information can be found in the MSRC [Report an Issue FAQ](https://www.microsoft.com/msrc/faqs-report-an-issue).\n\nSecurity reports made through MSRC may qualify for the Microsoft .NET Bounty. Details of the Microsoft .NET Bounty Program including terms and conditions are at https://aka.ms/corebounty.\n\n### Support\n\nYou can ask questions about this issue on GitHub in the .NET GitHub organization. The main repos are located at https://github.com/dotnet/runtime. The Announcements repo (https://github.com/dotnet/Announcements) will contain this bulletin as an issue and will include a link to a discussion issue. You can ask questions in the linked discussion issue.\n\n### Disclaimer\n\nThe information provided in this advisory is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.\n\n### External Links\n\n[CVE-2026-26171](https://www.cve.org/CVERecord?id=CVE-2026-26171)\n\n### Acknowledgements\n\nLudvig Pedersen\n\n### Revisions\n\nV1.0 (April 14, 2026): Advisory published.", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-26171.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-26171.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-26171", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00504", "scoring_system": "epss", "scoring_elements": "0.6622", "published_at": "2026-05-05T12:55:00Z" }, { "value": "0.00504", 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"CVE-2025-55248", "GHSA-gwq6-fmvp-qp68" ], "risk_score": 3.7, "exploitability": "0.5", "weighted_severity": "7.4", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-k3fx-jcj4-jfc6" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/352013?format=api", "vulnerability_id": "VCID-kd36-kt84-1fcz", "summary": "Microsoft Security Advisory CVE-2026-33116 – .NET, .NET Framework, and Visual Studio Denial of Service Vulnerability\n## Executive Summary: \n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in System.Security.Cryptography.Xml. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nA vulnerability exists in EncryptedXml class where an attacker can cause an infinite loop and perform a Denial of Service attack.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/12345\n\n## CVSS Details\n\n- **Version:** 3.1\n- **Severity:** High\n- **Score:** 7.5\n- **Vector:** 7.5 CVSS: 3.1AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C\n- **Weakness:** CWE-835 CWE-400 CWE-20: Loop with Unreachable Exit Condition ('Infinite Loop') Uncontrolled Resource Consumption Improper Input Validation\n\n## Affected Platforms\n\n- **Platforms:** All\n- **Architectures:** All\n\n## <a name=\"affected-packages\"></a>Affected Packages\nThe vulnerability affects any Microsoft .NET project if it uses any of affected packages versions listed below\n\n### <a name=\".NET 10\"></a>.NET 10\nPackage name | Affected version | Patched version\n------------ | ---------------- | -------------------------\n[System.Security.Cryptography.Xml](https://www.nuget.org/packages/System.Security.Cryptography.Xml) | >=10.0.0, <=10.0.5 | 10.0.6\n\n### <a name=\".NET 9\"></a>.NET 9\nPackage name | Affected version | Patched version\n------------ | ---------------- | -------------------------\n[System.Security.Cryptography.Xml](https://www.nuget.org/packages/System.Security.Cryptography.Xml) | >=9.0.0, <=9.0.14 | 9.0.15\n\n### <a name=\".NET 8\"></a>.NET 8\nPackage name | Affected version | Patched version\n------------ | ---------------- | -------------------------\n[System.Security.Cryptography.Xml](https://www.nuget.org/packages/System.Security.Cryptography.Xml) | >=8.0.0, <=8.0.2 | 8.0.3\n\n## Advisory FAQ\n\n### <a name=\"how-affected\"></a>How do I know if I am affected?\n\nIf using a package listed in [affected packages](#affected-packages), you're exposed to the vulnerability.\n\n### <a name=\"how-fix\"></a>How do I fix the issue?\n\nTo update the Using the System.Security.Cryptography.xml NuGet package, use one of the following methods:\n\nNuGet Package Manager UI in Visual Studio:\n- Open your project in Visual Studio.\n- Right-click on your project in Solution Explorer and select \"Manage NuGet Packages...\" or navigate to \"Project > Manage NuGet Packages\".\n- In the NuGet Package Manager window, select the \"Updates\" tab. This tab lists packages with available updates from your configured package sources.\n- Select the package(s) you wish to update. You can choose a specific version from the dropdown or update to the latest available version.\n- Click the \"Update\" button.\n\nUsing the NuGet Package Manager Console in Visual Studio:\n- Open your project in Visual Studio.\n- Navigate to \"Tools > NuGet Package Manager > Package Manager Console\".\n- To update a specific package to its latest version, use the following Update-Package command:\n\n```Update-Package -Id System.Security.Cryptography.xml```\n\nUsing the .NET CLI (Command Line Interface):\n- Open a terminal or command prompt in your project's directory.\n- To update a specific package to its latest version, use the following add package command:\n\n```dotnet add package System.Security.Cryptography.xml```\n\nOnce you have updated the nuget package reference you must recompile and deploy your application. Additionally we recommend you update your runtime and/or SDKs, but it is not necessary to patch the vulnerability.\n\n## Other Information\n\n### Reporting Security Issues\n\nIf you have found a potential security issue in a supported version of .NET, please report it to the Microsoft Security Response Center (MSRC) via the [MSRC Researcher Portal](https://msrc.microsoft.com/report/vulnerability/new). Further information can be found in the MSRC [Report an Issue FAQ](https://www.microsoft.com/msrc/faqs-report-an-issue).\n\nSecurity reports made through MSRC may qualify for the Microsoft .NET Bounty. Details of the Microsoft .NET Bounty Program including terms and conditions are at https://aka.ms/corebounty.\n\n### Support\n\nYou can ask questions about this issue on GitHub in the .NET GitHub organization. The main repos are located at https://github.com/dotnet/runtime. The Announcements repo (https://github.com/dotnet/Announcements) will contain this bulletin as an issue and will include a link to a discussion issue. You can ask questions in the linked discussion issue.\n\n### Disclaimer\n\nThe information provided in this advisory is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.\n\n### External Links\n\n[CVE-2026-33116]( https://www.cve.org/CVERecord?id=CVE-2026-33116)\n\n### Acknowledgements\n\nLudvig Pedersen\n\n### Revisions\n\nV1.0 (April 14, 2026): Advisory published.", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-33116.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-33116.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-33116", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00764", "scoring_system": "epss", "scoring_elements": "0.73474", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.00784", 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"reference_url": "https://access.redhat.com/errata/RHSA-2026:9205", "reference_id": "RHSA-2026:9205", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2026:9205" }, { "reference_url": "https://usn.ubuntu.com/8176-1/", "reference_id": "USN-8176-1", "reference_type": "", "scores": [], "url": "https://usn.ubuntu.com/8176-1/" }, { "reference_url": "https://usn.ubuntu.com/8216-1/", "reference_id": "USN-8216-1", "reference_type": "", "scores": [], "url": "https://usn.ubuntu.com/8216-1/" } ], "fixed_packages": [], "aliases": [ "CVE-2026-33116", "GHSA-37gx-xxp4-5rgx" ], "risk_score": 4.0, "exploitability": "0.5", "weighted_severity": "8.0", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-kd36-kt84-1fcz" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/351986?format=api", "vulnerability_id": "VCID-u6eh-1bec-n7c2", "summary": "Microsoft Security Advisory CVE-2026-32178 – .NET Spoofing Vulnerability\n## Executive Summary: \n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in .NET 8.0, .NET 9.0, and .NET 10.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nA vulnerability exists in System.Net.Mail where specially crafted data allows an unauthorized attacker to perform a spoofing attack over the network.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/12345\n\n## CVSS Details\n\n- **Version:** 3.1\n- **Severity:** High\n- **Score:** 7.5\n- **Vector:** 7.5: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C\n- **Weakness:** CWE-138: Improper Neutralization of Special Elements\n\n## Affected Platforms\n\n- **Platforms:** All\n- **Architectures:** All\n\n## <a name=\"affected-packages\"></a>Affected Packages\nThe vulnerability affects any Microsoft .NET project if it uses any of affected package versions listed below\n\n\n### <a name=\".NET 8\"></a>.NET 8\nPackage name | Affected version | Patched version\n------------ | ---------------- | -------------------------\n[Microsoft.NetCore.App.Runtime.linux-arm](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-arm) | >= 8.0.0, <= 8.0.25 | 8.0.26\n[Microsoft.NetCore.App.Runtime.linux-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-arm64) | >= 8.0.0, <= 8.0.25 | 8.0.26\n[Microsoft.NetCore.App.Runtime.linux-musl-arm](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-musl-arm) | >= 8.0.0, <= 8.0.25 | 8.0.26\n[Microsoft.NetCore.App.Runtime.linux-musl-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-musl-arm64) | >= 8.0.0, <= 8.0.25 | 8.0.26\n[Microsoft.NetCore.App.Runtime.linux-musl-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-musl-x64) | >= 8.0.0, <= 8.0.25 | 8.0.26\n[Microsoft.NetCore.App.Runtime.linux-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-x64) | >= 8.0.0, <= 8.0.25 | 8.0.26\n[Microsoft.NetCore.App.Runtime.osx-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.osx-arm64) | >= 8.0.0, <= 8.0.25 | 8.0.26\n[Microsoft.NetCore.App.Runtime.osx-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.osx-x64) | >= 8.0.0, <= 8.0.25 | 8.0.26\n[Microsoft.NetCore.App.Runtime.win-arm](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-arm) | >= 8.0.0, <= 8.0.25 | 8.0.26\n[Microsoft.NetCore.App.Runtime.win-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-arm64) | >= 8.0.0, <= 8.0.25 | 8.0.26\n[Microsoft.NetCore.App.Runtime.win-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-x64) | >= 8.0.0, <= 8.0.25 | 8.0.26\n[Microsoft.NetCore.App.Runtime.win-x86](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-x86) | >= 8.0.0, <= 8.0.25 | 8.0.26\n\n\n### <a name=\".NET 9\"></a>.NET 9\nPackage name | Affected version | Patched version\n------------ | ---------------- | -------------------------\n[Microsoft.NetCore.App.Runtime.linux-arm](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-arm) | >= 9.0.0, <= 9.0.14 | 9.0.15\n[Microsoft.NetCore.App.Runtime.linux-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-arm64) | >= 9.0.0, <= 9.0.14 | 9.0.15\n[Microsoft.NetCore.App.Runtime.linux-musl-arm](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-musl-arm) | >= 9.0.0, <= 9.0.14 | 9.0.15\n[Microsoft.NetCore.App.Runtime.linux-musl-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-musl-arm64) | >= 9.0.0, <= 9.0.14 | 9.0.15\n[Microsoft.NetCore.App.Runtime.linux-musl-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-musl-x64) | >= 9.0.0, <= 9.0.14 | 9.0.15\n[Microsoft.NetCore.App.Runtime.linux-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-x64) | >= 9.0.0, <= 9.0.14 | 9.0.15\n[Microsoft.NetCore.App.Runtime.osx-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.osx-arm64) | >= 9.0.0, <= 9.0.14 | 9.0.15\n[Microsoft.NetCore.App.Runtime.osx-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.osx-x64) | >= 9.0.0, <= 9.0.14 | 9.0.15\n[Microsoft.NetCore.App.Runtime.win-arm](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-arm) | >= 9.0.0, <= 9.0.14 | 9.0.15\n[Microsoft.NetCore.App.Runtime.win-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-arm64) | >= 9.0.0, <= 9.0.14 | 9.0.15\n[Microsoft.NetCore.App.Runtime.win-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-x64) | >= 9.0.0, <= 9.0.14 | 9.0.15\n[Microsoft.NetCore.App.Runtime.win-x86](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-x86) | >= 9.0.0, <= 9.0.14 | 9.0.15\n\n### <a name=\".NET 10\"></a>.NET 10\nPackage name | Affected version | Patched version\n------------ | ---------------- | -------------------------\n[Microsoft.NetCore.App.Runtime.linux-arm](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-arm) | >= 10.0.0, <= 10.0.5 | 10.0.6\n[Microsoft.NetCore.App.Runtime.linux-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-arm64) | >= 10.0.0, <= 10.0.5 | 10.0.6\n[Microsoft.NetCore.App.Runtime.linux-musl-arm](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-musl-arm) | >= 10.0.0, <= 10.0.5 | 10.0.6\n[Microsoft.NetCore.App.Runtime.linux-musl-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-musl-arm64) | >= 10.0.0, <= 10.0.5 | 10.0.6\n[Microsoft.NetCore.App.Runtime.linux-musl-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-musl-x64) | >= 10.0.0, <= 10.0.5 | 10.0.6\n[Microsoft.NetCore.App.Runtime.linux-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-x64) | >= 10.0.0, <= 10.0.5 | 10.0.6\n[Microsoft.NetCore.App.Runtime.osx-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.osx-arm64) | >= 10.0.0, <= 10.0.5 | 10.0.6\n[Microsoft.NetCore.App.Runtime.osx-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.osx-x64) | >= 10.0.0, <= 10.0.5 | 10.0.6\n[Microsoft.NetCore.App.Runtime.win-arm](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-arm) | >= 10.0.0, <= 10.0.5 | 10.0.6\n[Microsoft.NetCore.App.Runtime.win-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-arm64) | >= 10.0.0, <= 10.0.5 | 10.0.6\n[Microsoft.NetCore.App.Runtime.win-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-x64) | >= 10.0.0, <= 10.0.5 | 10.0.6\n[Microsoft.NetCore.App.Runtime.win-x86](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-x86) | >= 10.0.0, <= 10.0.5 | 10.0.6\n\n## Advisory FAQ\n\n### <a name=\"how-affected\"></a>How do I know if I am affected?\n\nIf using a package listed in [affected packages](#affected-packages), you're exposed to the vulnerability.\n\n### <a name=\"how-fix\"></a>How do I fix the issue?\n\n1. To fix the issue please install the latest version of .NET 8.0, NET 9.0, or .NET 10.0, as appropriate. If you have installed one or more .NET SDKs through Visual Studio, Visual Studio will prompt you to update Visual Studio, which will also update your .NET SDKs.\n2. If your application references the vulnerable package, update the package reference to the patched version. You can list the versions you have installed by running the `dotnet --info` command.\n\nOnce you have installed the updated runtime or SDK, restart your apps for the update to take effect.\n\nAdditionally, if you've deployed [self-contained applications](https://docs.microsoft.com/dotnet/core/deploying/#self-contained-deployments-scd) targeting any of the impacted versions, these applications are also vulnerable and must be recompiled and redeployed.\n\n## Other Information\n\n### Reporting Security Issues\n\nIf you have found a potential security issue in a supported version of .NET, please report it to the Microsoft Security Response Center (MSRC) via the [MSRC Researcher Portal](https://msrc.microsoft.com/report/vulnerability/new). Further information can be found in the MSRC [Report an Issue FAQ](https://www.microsoft.com/msrc/faqs-report-an-issue).\n\nSecurity reports made through MSRC may qualify for the Microsoft .NET Bounty. Details of the Microsoft .NET Bounty Program including terms and conditions are at https://aka.ms/corebounty.\n\n### Support\n\nYou can ask questions about this issue on GitHub in the .NET GitHub organization. The main repos are located at https://github.com/dotnet/runtime. The Announcements repo (https://github.com/dotnet/Announcements) will contain this bulletin as an issue and will include a link to a discussion issue. You can ask questions in the linked discussion issue.\n\n### Disclaimer\n\nThe information provided in this advisory is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.\n\n### External Links\n\n[CVE-2026-32178]( https://www.cve.org/CVERecord?id=CVE-2026-32178)\n\n### Acknowledgements\n\nLudvig Pedersen\n\n### Revisions\n\nV1.0 (April 14, 2026): Advisory published.", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-32178.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-32178.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-32178", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.0004", "scoring_system": "epss", "scoring_elements": "0.1202", "published_at": "2026-05-05T12:55:00Z" }, { "value": "0.0004", "scoring_system": "epss", "scoring_elements": "0.12101", "published_at": "2026-04-29T12:55:00Z" }, { "value": "0.0004", "scoring_system": "epss", "scoring_elements": "0.1221", "published_at": "2026-04-26T12:55:00Z" }, { "value": "0.0004", "scoring_system": "epss", "scoring_elements": "0.12244", "published_at": "2026-04-24T12:55:00Z" }, { "value": "0.00045", "scoring_system": "epss", "scoring_elements": "0.13706", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.00048", "scoring_system": "epss", "scoring_elements": "0.14612", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.00053", "scoring_system": "epss", "scoring_elements": "0.16582", "published_at": "2026-04-16T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-32178" }, { "reference_url": "https://github.com/dotnet/announcements/issues/12345", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.0", "scoring_system": "cvssv3.1", "scoring_elements": 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"https://github.com/dotnet/runtime/security/advisories/GHSA-vmwf-m9c5-3jvc" }, { "reference_url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32178", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.0", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N" }, { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C" }, { "value": "LOW", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-15T10:40:37Z/" } ], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32178" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32178", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.0", "scoring_system": "cvssv3.1", "scoring_elements": 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"RHSA-2026:9205", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2026:9205" }, { "reference_url": "https://usn.ubuntu.com/8176-1/", "reference_id": "USN-8176-1", "reference_type": "", "scores": [], "url": "https://usn.ubuntu.com/8176-1/" }, { "reference_url": "https://usn.ubuntu.com/8216-1/", "reference_id": "USN-8216-1", "reference_type": "", "scores": [], "url": "https://usn.ubuntu.com/8216-1/" } ], "fixed_packages": [], "aliases": [ "CVE-2026-32178", "GHSA-vmwf-m9c5-3jvc" ], "risk_score": 3.4, "exploitability": "0.5", "weighted_severity": "6.8", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-u6eh-1bec-n7c2" } ], "fixing_vulnerabilities": [], "risk_score": "10.0", "resource_url": "http://public2.vulnerablecode.io/packages/pkg:rpm/redhat/dotnet9-0-main@9.0.116-1%3Farch=hum1" }