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DEBIAN-CVE-2026-8177

Type: advisorySource: OSV1 source record

XML::LibXML versions through 2.0210 for Perl read out-of-bounds heap memory when parsing XML node names containing truncated UTF-8 byte sequences. A node name ending in the middle of a multi byte UTF-8 sequence causes the parser to read past the end of the input string into adjacent heap memory. Any Perl process that passes attacker controlled strings to XML::LibXML's DOM node-name methods can reach this path on the default API. The likely consequence is a crash, causing denial of service.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-8177

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:DEBIAN-CVE-2026-8177

libxml-libxml-perl

Source reference: /affected/0/package/name

Affected versions
2.0207+dfsg+really+2.0134-1

Source reference: /affected/0/versions

Fixed versions
2.0207+dfsg+really+2.0134-1+deb12u1

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

libxml-libxml-perl

Source reference: /affected/1/package/name

Affected versions
2.0207+dfsg+really+2.0134-5

Source reference: /affected/1/versions

Fixed versions
2.0207+dfsg+really+2.0134-5+deb13u1

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

libxml-libxml-perl

Source reference: /affected/2/package/name

Affected versions
2.0207+dfsg+really+2.0134-5

Source reference: /affected/2/versions

2.0207+dfsg+really+2.0134-6

Source reference: /affected/2/versions

2.0207+dfsg+really+2.0134-7

Source reference: /affected/2/versions

Fixed versions
2.0207+dfsg+really+2.0134-8

Source reference: /affected/2/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": "2.0207+dfsg+really+2.0134-1+deb12u1"
          }
        ]
      }
    ],
    "package": {
      "name": "libxml-libxml-perl",
      "purl": "pkg:deb/debian/libxml-libxml-perl?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "2.0207+dfsg+really+2.0134-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8177.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.0207+dfsg+really+2.0134-5+deb13u1"
          }
        ]
      }
    ],
    "package": {
      "name": "libxml-libxml-perl",
      "purl": "pkg:deb/debian/libxml-libxml-perl?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "2.0207+dfsg+really+2.0134-5"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8177.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.0207+dfsg+really+2.0134-8"
          }
        ]
      }
    ],
    "package": {
      "name": "libxml-libxml-perl",
      "purl": "pkg:deb/debian/libxml-libxml-perl?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "2.0207+dfsg+really+2.0134-5",
      "2.0207+dfsg+really+2.0134-6",
      "2.0207+dfsg+really+2.0134-7"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8177.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#58489 · Revision 1
Added to Heist Feed
Publisher date
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