Package Instance
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GET /api/packages/139863?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/139863?format=api", "purl": "pkg:gem/nokogiri@1.18.5", "type": "gem", "namespace": "", "name": "nokogiri", "version": "1.18.5", "qualifiers": {}, "subpath": "", "is_vulnerable": true, "next_non_vulnerable_version": "1.19.1", "latest_non_vulnerable_version": "1.19.1", "affected_by_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/29798?format=api", "vulnerability_id": "VCID-6r5w-pgkx-v3cb", "summary": "Nokogiri patches vendored libxml2 to resolve multiple CVEs\n## Summary\n\nNokogiri v1.18.9 patches the vendored libxml2 to address CVE-2025-6021, CVE-2025-6170, CVE-2025-49794, CVE-2025-49795, and CVE-2025-49796.\n\n## Impact and severity\n\n### CVE-2025-6021\n\nA flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory corruption or a denial of service when processing crafted input.\n\nNVD claims a severity of 7.5 High (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)\n\nFixed by applying https://gitlab.gnome.org/GNOME/libxml2/-/commit/17d950ae\n\n### CVE-2025-6170\n\nA flaw was found in the interactive shell of the xmllint command-line tool, used for parsing XML files. When a user inputs an overly long command, the program does not check the input size properly, which can cause it to crash. This issue might allow attackers to run harmful code in rare configurations without modern protections.\n\nNVD claims a severity of 2.5 Low (CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L)\n\nFixed by applying https://gitlab.gnome.org/GNOME/libxml2/-/commit/5e9ec5c1\n\n### CVE-2025-49794\n\nA use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain circumstances when the XML schematron has the <sch:name path=\"...\"/> schema elements. This flaw allows a malicious actor to craft a malicious XML document used as input for libxml, resulting in the program's crash using libxml or other possible undefined behaviors.\n\nNVD claims a severity of 9.1 Critical (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H)\n\nFixed by applying https://gitlab.gnome.org/GNOME/libxml2/-/commit/81cef8c5\n\n### CVE-2025-49795\n\nA NULL pointer dereference vulnerability was found in libxml2 when processing XPath XML expressions. This flaw allows an attacker to craft a malicious XML input to libxml2, leading to a denial of service.\n\nNVD claims a severity of 7.5 High (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)\n\nFixed by applying https://gitlab.gnome.org/GNOME/libxml2/-/commit/62048278\n\n### CVE-2025-49796\n\nA vulnerability was found in libxml2. Processing certain sch:name elements from the input XML file can trigger a memory corruption issue. This flaw allows an attacker to craft a malicious XML input file that can lead libxml to crash, resulting in a denial of service or other possible undefined behavior due to sensitive data being corrupted in memory.\n\nNVD claims a severity of 9.1 Critical (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H)\n\nFixed by applying https://gitlab.gnome.org/GNOME/libxml2/-/commit/81cef8c5\n\n## Affected Versions\n\n- Nokogiri < 1.18.9 when using CRuby (MRI) with vendored libxml2\n\n## Patched Versions\n\n- Nokogiri >= 1.18.9\n\n## Mitigation\n\nUpgrade to Nokogiri v1.18.9 or later.\n\nUsers who are unable to upgrade Nokogiri may also choose a more complicated mitigation: compile and link Nokogiri against patched external libxml2 libraries which will also address these same issues.\n\n## References\n\n- https://github.com/sparklemotion/nokogiri/pull/3526\n- https://nvd.nist.gov/vuln/detail/CVE-2025-6021\n- https://nvd.nist.gov/vuln/detail/CVE-2025-6170\n- https://nvd.nist.gov/vuln/detail/CVE-2025-49794\n- https://nvd.nist.gov/vuln/detail/CVE-2025-49795\n- https://nvd.nist.gov/vuln/detail/CVE-2025-49796", "references": [ { "reference_url": "https://github.com/sparklemotion/nokogiri", "reference_id": "", "reference_type": "", "scores": [ { "value": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/sparklemotion/nokogiri" }, { "reference_url": "https://github.com/sparklemotion/nokogiri/pull/3526", "reference_id": "", "reference_type": "", "scores": [ { "value": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/sparklemotion/nokogiri/pull/3526" }, { "reference_url": "https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-353f-x4gh-cqq8", "reference_id": "", "reference_type": "", "scores": [ { "value": "CRITICAL", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-353f-x4gh-cqq8" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49794", "reference_id": "", "reference_type": "", "scores": [ { "value": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49794" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49795", "reference_id": "", "reference_type": "", "scores": [ { "value": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49795" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49796", "reference_id": "", "reference_type": "", "scores": [ { "value": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49796" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-6021", "reference_id": "", "reference_type": "", "scores": [ { "value": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-6021" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-6170", "reference_id": "", "reference_type": "", "scores": [ { "value": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-6170" }, { "reference_url": "https://github.com/advisories/GHSA-353f-x4gh-cqq8", "reference_id": "GHSA-353f-x4gh-cqq8", "reference_type": "", "scores": [ { "value": "CRITICAL", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-353f-x4gh-cqq8" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/70555?format=api", "purl": "pkg:gem/nokogiri@1.18.9", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-jfh3-1sgm-7ug2" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:gem/nokogiri@1.18.9" } ], "aliases": [ "GHSA-353f-x4gh-cqq8" ], "risk_score": 4.5, "exploitability": "0.5", "weighted_severity": "9.0", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-6r5w-pgkx-v3cb" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/21765?format=api", "vulnerability_id": "VCID-jfh3-1sgm-7ug2", "summary": "Nokogiri does not check the return value from xmlC14NExecute\n## Summary\n\nNokogiri's CRuby extension fails to check the return value from `xmlC14NExecute` in the method `Nokogiri::XML::Document#canonicalize` and `Nokogiri::XML::Node#canonicalize`. When canonicalization fails, an empty string is returned instead of raising an exception. This incorrect return value may allow downstream libraries to accept invalid or incomplete canonicalized XML, which has been demonstrated to enable signature validation bypass in SAML libraries.\n\nJRuby is not affected, as the Java implementation correctly raises `RuntimeError` on canonicalization failure.\n\n## Mitigation\n\nUpgrade to Nokogiri `>= 1.19.1`.\n\n## Severity\n\nThe maintainers have assessed this as **Medium** severity. Nokogiri itself is a parsing library without a clear security boundary related to canonicalization, so the direct impact is that a method returns incorrect data on invalid input. However, this behavior was exploited in practice to bypass SAML signature validation in downstream libraries (see References).\n\n## Credit\n\nThis vulnerability was responsibly reported by HackerOne researcher `d4d`.", "references": [ { "reference_url": "https://github.com/sparklemotion/nokogiri", "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:L/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/sparklemotion/nokogiri" }, { "reference_url": "https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-wx95-c6cv-8532", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3", "scoring_elements": "" }, { "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:L/A:N" }, { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-wx95-c6cv-8532" }, { "reference_url": "https://github.com/advisories/GHSA-wx95-c6cv-8532", "reference_id": "GHSA-wx95-c6cv-8532", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-wx95-c6cv-8532" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/64223?format=api", "purl": "pkg:gem/nokogiri@1.19.1", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:gem/nokogiri@1.19.1" } ], "aliases": [ "GHSA-wx95-c6cv-8532" ], "risk_score": 3.1, "exploitability": "0.5", "weighted_severity": "6.2", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-jfh3-1sgm-7ug2" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/25543?format=api", "vulnerability_id": "VCID-w8jf-tsmr-g7cd", "summary": "Nokogiri updates packaged libxml2 to v2.13.8 to resolve CVE-2025-32414 and CVE-2025-32415\n## Summary\n\nNokogiri v1.18.8 upgrades its dependency libxml2 to [v2.13.8](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.13.8).\n\nlibxml2 v2.13.8 addresses:\n\n- CVE-2025-32414\n - described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/889\n- CVE-2025-32415\n - described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/890\n\n## Impact\n\n### CVE-2025-32414: No impact\n\nIn libxml2 before 2.13.8 and 2.14.x before 2.14.2, out-of-bounds memory access can occur in the Python API (Python bindings) because of an incorrect return value. This occurs in xmlPythonFileRead and xmlPythonFileReadRaw because of a difference between bytes and characters.\n\n**There is no impact** from this CVE for Nokogiri users.\n\n\n### CVE-2025-32415: Low impact\n\nIn libxml2 before 2.13.8 and 2.14.x before 2.14.2, xmlSchemaIDCFillNodeTables in xmlschemas.c has a heap-based buffer under-read. To exploit this, a crafted XML document must be validated against an XML schema with certain identity constraints, or a crafted XML schema must be used.\n\nIn the upstream issue, further context is provided by the maintainer:\n\n> The bug affects validation against untrusted XML Schemas (.xsd) and validation of untrusted\n> documents against trusted Schemas if they make use of xsd:keyref in combination with recursively\n> defined types that have additional identity constraints.\n\nMITRE has published a severity score of 2.9 LOW (CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L) for this CVE.", "references": [ { "reference_url": "https://github.com/sparklemotion/nokogiri", "reference_id": "", "reference_type": "", "scores": [ { "value": "LOW", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/sparklemotion/nokogiri" }, { "reference_url": "https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-5w6v-399v-w3cc", "reference_id": "", "reference_type": "", "scores": [ { "value": "LOW", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "LOW", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-5w6v-399v-w3cc" }, { "reference_url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/889", "reference_id": "", "reference_type": "", "scores": [ { "value": "LOW", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/889" }, { "reference_url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/890", "reference_id": "", "reference_type": "", "scores": [ { "value": "LOW", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/890" }, { "reference_url": "https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.13.8", "reference_id": "", "reference_type": "", "scores": [ { "value": "LOW", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.13.8" }, { "reference_url": "https://github.com/advisories/GHSA-5w6v-399v-w3cc", "reference_id": "GHSA-5w6v-399v-w3cc", "reference_type": "", "scores": [ { "value": "LOW", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-5w6v-399v-w3cc" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/68763?format=api", "purl": "pkg:gem/nokogiri@1.18.8", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6r5w-pgkx-v3cb" }, { "vulnerability": "VCID-jfh3-1sgm-7ug2" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:gem/nokogiri@1.18.8" } ], "aliases": [ "GHSA-5w6v-399v-w3cc" ], "risk_score": 1.4, "exploitability": "0.5", "weighted_severity": "2.7", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-w8jf-tsmr-g7cd" } ], "fixing_vulnerabilities": [], "risk_score": "4.5", "resource_url": "http://public2.vulnerablecode.io/packages/pkg:gem/nokogiri@1.18.5" }