CVE-2026-40469

Name
CVE-2026-40469
Description
Integer overflow vulnerability has been found in "builtin.c" program file of gawk (do_sub() routine). This issue could be used to overwrite gawk heap metadata and objects causing the program to crash. It affects 32-bit builds of gawk in versions 5.4.0 and below.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
cvd@cert.pl https://cert.pl/en/posts/2026/07/CVE-2026-40467
cvd@cert.pl https://cgit.git.savannah.gnu.org/cgit/gawk.git/commit/?id=ae1b2d508f46913269a9e62aceda3636afe8147b

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:fossies:gawk:*:*:*:*:*:*:*:* gawk >= None <= 5.4.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
gawk edge-main 5.3.2-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
gawk edge-main 5.3.2-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
gawk edge-main 5.3.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
gawk edge-main 5.3.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
gawk 3.24-main 5.3.2-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
gawk 3.23-main 5.3.2-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
gawk 3.22-main 5.3.2-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
gawk 3.21-main 5.3.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
gawk 3.20-main 5.3.0-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
gawk 3.19-main 5.3.0-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable