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DEBIAN-CVE-2026-4224

Type: advisorySource: OSV1 source record

When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow occurs.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-4224

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-2026-4224

python3.11

Source reference: /affected/0/package/name

Affected versions
3.11.2-6

Source reference: /affected/0/versions

3.11.2-6+deb12u1

Source reference: /affected/0/versions

3.11.2-6+deb12u2

Source reference: /affected/0/versions

3.11.2-6+deb12u3

Source reference: /affected/0/versions

3.11.2-6+deb12u4

Source reference: /affected/0/versions

3.11.2-6+deb12u5

Source reference: /affected/0/versions

3.11.2-6+deb12u6

Source reference: /affected/0/versions

3.11.2-6+deb12u7

Source reference: /affected/0/versions

Fixed versions
3.11.2-6+deb12u8

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

python3.13

Source reference: /affected/1/package/name

Affected versions
3.13.5-2

Source reference: /affected/1/versions

3.13.5-2+deb13u1

Source reference: /affected/1/versions

Fixed versions
3.13.5-2+deb13u2

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

python3.13

Source reference: /affected/2/package/name

Affected versions
3.13.11-1

Source reference: /affected/2/versions

3.13.12-1

Source reference: /affected/2/versions

3.13.5-2

Source reference: /affected/2/versions

3.13.6-1

Source reference: /affected/2/versions

3.13.7-1

Source reference: /affected/2/versions

3.13.8-1

Source reference: /affected/2/versions

3.13.9-1

Source reference: /affected/2/versions

Fixed versions
3.13.14-1

Source reference: /affected/2/ranges

Prerequisites
Not stated in this record

python3.14

Source reference: /affected/3/package/name

Affected versions
3.14.0-1

Source reference: /affected/3/versions

3.14.0-2

Source reference: /affected/3/versions

3.14.0-3

Source reference: /affected/3/versions

3.14.0-4

Source reference: /affected/3/versions

3.14.0-5

Source reference: /affected/3/versions

3.14.0~a7-1

Source reference: /affected/3/versions

3.14.0~b1-1

Source reference: /affected/3/versions

3.14.0~b2-1

Source reference: /affected/3/versions

3.14.0~b3-1

Source reference: /affected/3/versions

3.14.0~b4-1

Source reference: /affected/3/versions

3.14.0~rc1-1

Source reference: /affected/3/versions

3.14.0~rc2-1

Source reference: /affected/3/versions

3.14.0~rc3-1

Source reference: /affected/3/versions

3.14.2-1

Source reference: /affected/3/versions

3.14.3-1

Source reference: /affected/3/versions

3.14.3-2

Source reference: /affected/3/versions

3.14.3-3

Source reference: /affected/3/versions

Fixed versions
3.14.3-4

Source reference: /affected/3/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": "3.11.2-6+deb12u8"
          }
        ]
      }
    ],
    "package": {
      "name": "python3.11",
      "purl": "pkg:deb/debian/python3.11?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "3.11.2-6",
      "3.11.2-6+deb12u1",
      "3.11.2-6+deb12u2",
      "3.11.2-6+deb12u3",
      "3.11.2-6+deb12u4",
      "3.11.2-6+deb12u5",
      "3.11.2-6+deb12u6",
      "3.11.2-6+deb12u7"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4224.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "3.13.5-2+deb13u2"
          }
        ]
      }
    ],
    "package": {
      "name": "python3.13",
      "purl": "pkg:deb/debian/python3.13?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "3.13.5-2",
      "3.13.5-2+deb13u1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4224.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "3.13.14-1"
          }
        ]
      }
    ],
    "package": {
      "name": "python3.13",
      "purl": "pkg:deb/debian/python3.13?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "3.13.11-1",
      "3.13.12-1",
      "3.13.5-2",
      "3.13.6-1",
      "3.13.7-1",
      "3.13.8-1",
      "3.13.9-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4224.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "3.14.3-4"
          }
        ]
      }
    ],
    "package": {
      "name": "python3.14",
      "purl": "pkg:deb/debian/python3.14?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "3.14.0-1",
      "3.14.0-2",
      "3.14.0-3",
      "3.14.0-4",
      "3.14.0-5",
      "3.14.0~a7-1",
      "3.14.0~b1-1",
      "3.14.0~b2-1",
      "3.14.0~b3-1",
      "3.14.0~b4-1",
      "3.14.0~rc1-1",
      "3.14.0~rc2-1",
      "3.14.0~rc3-1",
      "3.14.2-1",
      "3.14.3-1",
      "3.14.3-2",
      "3.14.3-3"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4224.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#56957 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement