Package Instance
Lookup for vulnerable packages by Package URL.
GET /api/packages/1043717?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/1043717?format=api", "purl": "pkg:nuget/OpenTelemetry.Extensions.Propagators@1.10.0", "type": "nuget", "namespace": "", "name": "OpenTelemetry.Extensions.Propagators", "version": "1.10.0", "qualifiers": {}, "subpath": "", "is_vulnerable": true, "next_non_vulnerable_version": "1.15.3", "latest_non_vulnerable_version": "1.15.3", "affected_by_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/89352?format=api", "vulnerability_id": "VCID-56hw-64dt-j7bf", "summary": "OpenTelemetry dotnet: Excessive memory allocation when parsing OpenTelemetry propagation headers\n### Summary\n\nThe implementation details of the baggage, B3 and Jaeger processing code in the `OpenTelemetry.Api` and `OpenTelemetry.Extensions.Propagators` NuGet packages can allocate excessive memory when parsing which could create a potential denial of service (DoS) in the consuming application.\n\n### Details\n\n#### Exceeding Limits\n\n[`BaggagePropagator.Inject<T>()`](https://github.com/open-telemetry/opentelemetry-dotnet/blob/fc1a2864d1665bda857089e11fe9247e3c75637a/src/OpenTelemetry.Api/Context/Propagation/BaggagePropagator.cs#L93-L112) does not enforce the length limit of `8192` characters if the injected baggage contains only one item.\n\nThis change was introduced by #1048.\n\n#### Excessive allocation\n\nThe following methods eagerly allocate intermediate arrays before applying size limits.\n\n- [`BaggagePropagator.Extract<T>()`](https://github.com/open-telemetry/opentelemetry-dotnet/blob/888d1bf2489fb7408d3c5e8758a5bbffa89a8fb2/src/OpenTelemetry.Api/Context/Propagation/BaggagePropagator.cs#L52-L55) - this change was introduced by #1048.\n- [`BaggagePropagator.Inject<T>()`](https://github.com/open-telemetry/opentelemetry-dotnet/blob/888d1bf2489fb7408d3c5e8758a5bbffa89a8fb2/src/OpenTelemetry.Api/Context/Propagation/BaggagePropagator.cs#L138-L157) - this change was introduced by #1048.\n- [`B3Propagator.Extract<T>()`](https://github.com/open-telemetry/opentelemetry-dotnet/blob/888d1bf2489fb7408d3c5e8758a5bbffa89a8fb2/src/OpenTelemetry.Extensions.Propagators/B3Propagator.cs#L203-L207) - this change was introduced by #533.\n- [`B3Propagator.Extract<T>()`](https://github.com/open-telemetry/opentelemetry-dotnet/blob/888d1bf2489fb7408d3c5e8758a5bbffa89a8fb2/src/OpenTelemetry.Api/Context/Propagation/B3Propagator.cs#L204-L214) - this change was introduced by #3244.\n- [`JaegerPropagator.Extract<T>()`](https://github.com/open-telemetry/opentelemetry-dotnet/blob/888d1bf2489fb7408d3c5e8758a5bbffa89a8fb2/src/OpenTelemetry.Extensions.Propagators/JaegerPropagator.cs#L150-L154) - this change was introduced by #3309.\n\n### Impact\n\nExcessively large propagation headers, particularly in degenerate/malformed cases that consist or large numbers of delimiter characters, can allocate excessive amounts of memory for intermediate storage of parsed content relative to the size of the original input.\n\n### Mitigation\n\nHTTP servers often set maximum limits on the length of HTTP request headers, such as [Internet Information Services (IIS)](https://learn.microsoft.com/iis/configuration/system.webserver/security/requestfiltering/requestlimits/headerlimits/) which sets a default limit of 16KB and [nginx](https://nginx.org/docs/http/ngx_http_core_module.html#large_client_header_buffers) which sets a default limit of 8KB.\n\n### Workarounds\n\nPossible workarounds include:\n\n- Configuring appropriate HTTP request header limits.\n- Disabling baggage and/or trace propagation.\n\n### Remediation\n\n[#7061](https://github.com/open-telemetry/opentelemetry-dotnet/pull/7061) refactors the handling of baggage, B3 and Jaeger propagation headers to stop parsing eagerly when limits are exceeded and avoid allocating intermediate arrays.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-40894", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00028", "scoring_system": "epss", "scoring_elements": "0.08462", "published_at": "2026-06-05T12:55:00Z" }, { "value": "0.00028", "scoring_system": "epss", "scoring_elements": "0.08405", "published_at": "2026-06-08T12:55:00Z" }, { "value": "0.00028", "scoring_system": "epss", "scoring_elements": "0.0846", "published_at": "2026-06-07T12:55:00Z" }, { "value": "0.00028", "scoring_system": "epss", "scoring_elements": "0.0848", "published_at": "2026-06-06T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-40894" }, { "reference_url": "https://github.com/open-telemetry/opentelemetry-dotnet", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/open-telemetry/opentelemetry-dotnet" }, { "reference_url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/1048", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L" }, { "value": "MODERATE", "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/2026-04-23T19:22:40Z/" } ], "url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/1048" }, { "reference_url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/3244", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L" }, { "value": "MODERATE", "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/2026-04-23T19:22:40Z/" } ], "url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/3244" }, { "reference_url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/3309", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L" }, { "value": "MODERATE", "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/2026-04-23T19:22:40Z/" } ], "url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/3309" }, { "reference_url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/3533", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/3533" }, { "reference_url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/533", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L" }, { "value": "MODERATE", "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/2026-04-23T19:22:40Z/" } ], "url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/533" }, { "reference_url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/7061", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L" }, { "value": "MODERATE", "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/2026-04-23T19:22:40Z/" } ], "url": "https://github.com/open-telemetry/opentelemetry-dotnet/pull/7061" }, { "reference_url": "https://github.com/open-telemetry/opentelemetry-dotnet/releases/tag/core-1.15.3", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/open-telemetry/opentelemetry-dotnet/releases/tag/core-1.15.3" }, { "reference_url": "https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-g94r-2vxg-569j", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L" }, { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "MODERATE", "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/2026-04-23T19:22:40Z/" } ], "url": "https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-g94r-2vxg-569j" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40894", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40894" }, { "reference_url": "https://github.com/advisories/GHSA-g94r-2vxg-569j", "reference_id": "GHSA-g94r-2vxg-569j", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-g94r-2vxg-569j" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/110474?format=api", "purl": "pkg:nuget/OpenTelemetry.Extensions.Propagators@1.15.3", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/OpenTelemetry.Extensions.Propagators@1.15.3" } ], "aliases": [ "CVE-2026-40894", "GHSA-g94r-2vxg-569j" ], "risk_score": 3.1, "exploitability": "0.5", "weighted_severity": "6.2", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-56hw-64dt-j7bf" } ], "fixing_vulnerabilities": [], "risk_score": "3.1", "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/OpenTelemetry.Extensions.Propagators@1.10.0" }