CVE-2026-40467

Use After Free vulnerability has been found in "io.c" program file of gawk (do_getline_redir() routine). This issue may lead to a crash. It affects gawk in versions 5.4.0 and below.

Score

CVSS 3.1 7.5 High

Status

Analyzed - cvd@cert.pl

Published

2026-07-13

Last modified

2026-10-24

Weaknesses

CWE-416

Affected products

• Gawk (Fossies)
• Gawk (Gnu)

References

• https://cgit.git.savannah.gnu.org/cgit/gawk.git/commit/?id=a2d18c74109e41bec29a23098eba2e00057286d8
• https://cert.pl/en/posts/2026/07/CVE-2026-40467