Integer Overflow or Wraparound Affecting gawk package, versions <0:4.2.1-5.el8_10


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.2% (9th percentile)

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  • Snyk IDSNYK-ORACLE8-GAWK-20366878
  • published1 Oct 2026
  • disclosed13 Jul 2026

Introduced: 13 Jul 2026

CVE-2026-40468  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Oracle:8 gawk to version 0:4.2.1-5.el8_10 or higher.
This issue was patched in ELSA-2026-73511.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gawk package and not the gawk package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1