BREW-MIKUTTER-CVE-2025-71346 (GHSA-5W6V-399V-W3CC)
Vulnerability from osv_homebrew – Published: 2026-08-27 12:38 – Updated: 2026-08-27 12:38 – Source websiteSummary
Nokogiri v1.18.8 upgrades its dependency libxml2 to v2.13.8.
libxml2 v2.13.8 addresses:
- CVE-2025-32414
- described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/889
- CVE-2025-32415
- described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/890
Impact
CVE-2025-32414: No impact
In 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.
There is no impact from this CVE for Nokogiri users.
CVE-2025-32415: Low impact
In 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.
In the upstream issue, further context is provided by the maintainer:
The bug affects validation against untrusted XML Schemas (.xsd) and validation of untrusted documents against trusted Schemas if they make use of xsd:keyref in combination with recursively defined types that have additional identity constraints.
MITRE 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.
{
"affected": [
{
"ecosystem_specific": {
"fix": null,
"range_state": "affected",
"resource": "nokogiri",
"resource_purl": "pkg:gem/nokogiri@1.16.3",
"upstream_fixed_in": "1.18.8"
},
"package": {
"ecosystem": "Homebrew",
"name": "mikutter",
"purl": "pkg:brew/mikutter"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "RubyGems",
"key": "pkg:gem/nokogiri@1.16.3",
"name": "nokogiri",
"resource": "nokogiri",
"strategy": "registry",
"subject_version": "1.16.3"
}
]
},
"details": "## 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\u003e The bug affects validation against untrusted XML Schemas (.xsd) and validation of untrusted\n\u003e documents against trusted Schemas if they make use of xsd:keyref in combination with recursively\n\u003e 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.",
"id": "BREW-mikutter-CVE-2025-71346",
"modified": "2026-08-27T12:38:43Z",
"published": "2026-08-27T12:38:43Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-5w6v-399v-w3cc"
},
{
"type": "PACKAGE",
"url": "https://github.com/sparklemotion/nokogiri"
},
{
"type": "WEB",
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/889"
},
{
"type": "WEB",
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/890"
},
{
"type": "WEB",
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.13.8"
}
],
"schema_version": "1.7.3",
"summary": "Nokogiri updates packaged libxml2 to v2.13.8 to resolve CVE-2025-32414 and CVE-2025-32415",
"upstream": [
"GHSA-5w6v-399v-w3cc",
"CVE-2025-71346"
]
}
Sightings
| Author | Source | Type | Date | Other |
|---|
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