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libxml2 security update

Type: advisorySource: OSV1 source record

This library allows to manipulate XML files. It includes support to read, modify and write XML and HTML files. There is DTDs support this includes parsing and validation even with complex DtDs, either at parse time or later once the document has been modified. The output can be a simple SAX stream or and in-memory DOM like representations. In this case one can use the built-in XPath and XPointer implementation to select sub nodes or ranges. A flexible Input/Output mechanism is available, with existing HTTP and FTP modules and combined to an URI library. Security Fix(es): Integer overflow in libxml in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)(CVE-2026-17705) In libxml2 before 2.15.4, xmlFAParsePosCharGroup has an out-of-bounds read, aka an out-of-bounds read in the NXT macro in xmlregexp.(CVE-2026-86137) In libxml2 before 2.15.4, xmlDictAddQString in dict.c has an integer overflow and resultant heap-based buffer overflow.(CVE-2026-86138) In libxml2 before 2.15.4, xmlSnprintfElements in valid.c has a strcat stack-based buffer overflow.(CVE-2026-86140)

Announced Source revision 1
Original source ↗

OESA-2026-4129

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:OESA-2026-4129

libxml2

Source reference: /affected/0/package/name

Affected versions
Not stated in this record
Fixed versions
2.11.9-18.oe2403sp4

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.11.9-18.oe2403sp4"
          }
        ]
      }
    ],
    "package": {
      "name": "libxml2",
      "purl": "pkg:rpm/openEuler/libxml2&distro=openEuler-24.03-LTS-SP4",
      "ecosystem": "openEuler:24.03-LTS-SP4"
    },
    "database_specific": {
      "source": "https://repo.openeuler.org/security/data/osv/OESA-2026-4129.json"
    },
    "ecosystem_specific": {
      "src": [
        "libxml2-2.11.9-18.oe2403sp4.src.rpm"
      ],
      "noarch": [
        "libxml2-help-2.11.9-18.oe2403sp4.noarch.rpm"
      ],
      "x86_64": [
        "libxml2-2.11.9-18.oe2403sp4.x86_64.rpm",
        "libxml2-debuginfo-2.11.9-18.oe2403sp4.x86_64.rpm",
        "libxml2-debugsource-2.11.9-18.oe2403sp4.x86_64.rpm",
        "libxml2-devel-2.11.9-18.oe2403sp4.x86_64.rpm",
        "python3-libxml2-2.11.9-18.oe2403sp4.x86_64.rpm"
      ],
      "aarch64": [
        "libxml2-2.11.9-18.oe2403sp4.aarch64.rpm",
        "libxml2-debuginfo-2.11.9-18.oe2403sp4.aarch64.rpm",
        "libxml2-debugsource-2.11.9-18.oe2403sp4.aarch64.rpm",
        "libxml2-devel-2.11.9-18.oe2403sp4.aarch64.rpm",
        "python3-libxml2-2.11.9-18.oe2403sp4.aarch64.rpm"
      ]
    }
  }
]

Publisher severity

high

Source reference: /database_specific/severity

Event
#14759 · Revision 1
Added to Heist Feed
Publisher date
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