CVE-2026-58469

Name	CVE-2026-58469
Description	GNU Wget through 1.25.0, fixed in commit 37a40fc, contains a heap buffer underread vulnerability in the clean_metalink_string() function within src/metalink.c that allows a malicious server to trigger memory corruption by serving a Metalink document containing a whitespace-only URL. Attackers can cause the function to decrement a pointer past the start of the buffer when processing an all-whitespace Metalink URL, potentially leading to abnormal program behavior.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
wget (PTS)	bullseye	1.21-1+deb11u1	vulnerable
	bullseye (security)	1.21-1+deb11u2	vulnerable
	bookworm	1.21.3-1+deb12u1	vulnerable
	forky, sid, trixie	1.25.0-2	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
wget	source	(unstable)	(unfixed)

Fixed by: https://gitlab.com/gnuwget/wget/-/commit/37a40fcb450153f69537c7cbc2a7a4fb0b6f7826