Use After Free Affecting gawk package, versions [0,]


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.21% (12th percentile)

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  • Snyk IDSNYK-UNMANAGED-GAWK-17966774
  • published14 Jul 2026
  • disclosed13 Jul 2026
  • creditUnknown

Introduced: 13 Jul 2026

CVE-2026-40467  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Use After Free in the do_getline_redir function in the io.c file. An attacker can cause a crash by triggering use of freed memory during input redirection processing.

CVSS Base Scores

version 4.0
version 3.1