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DEBIAN-CVE-2026-40468

Type: advisorySource: OSV1 source record

Integer overflow vulnerability has been found in "builtin.c" program file of gawk. This issue may lead to memory exhaustion on the hosting operating system and could be used to overwrite gawk heap metadata and objects with attacker-controlled bytes. It affects gawk in versions 5.4.0 and below.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-40468

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-2026-40468

gawk

Source reference: /affected/0/package/name

Affected versions
1:5.2.1-2

Source reference: /affected/0/versions

1:5.3.2-1

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

gawk

Source reference: /affected/1/package/name

Affected versions
1:5.2.1-2

Source reference: /affected/1/versions

1:5.3.2-1

Source reference: /affected/1/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

gawk

Source reference: /affected/2/package/name

Affected versions
1:5.2.1-2

Source reference: /affected/2/versions

1:5.3.2-1

Source reference: /affected/2/versions

Fixed versions
Not stated in this record
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"
          }
        ]
      }
    ],
    "package": {
      "name": "gawk",
      "purl": "pkg:deb/debian/gawk?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "1:5.2.1-2",
      "1:5.3.2-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-40468.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "gawk",
      "purl": "pkg:deb/debian/gawk?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "1:5.2.1-2",
      "1:5.3.2-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-40468.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "gawk",
      "purl": "pkg:deb/debian/gawk?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "1:5.2.1-2",
      "1:5.3.2-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-40468.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#56479 · Revision 1
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Publisher date
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