CVE-2026-26157

Name	CVE-2026-26157
Description	A flaw was found in BusyBox. Incomplete path sanitization in its archive extraction utilities allows an attacker to craft malicious archives that when extracted, and under specific conditions, may write to files outside the intended directory. This can lead to arbitrary file overwrite, potentially enabling code execution through the modification of sensitive system files.
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)
Debian Bugs	1127782

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
busybox (PTS)	bullseye	1:1.30.1-6	vulnerable
	bullseye (security)	1:1.30.1-6+deb11u1	vulnerable
	bookworm	1:1.35.0-4	vulnerable
	trixie	1:1.37.0-6	vulnerable
	forky, sid	1:1.37.0-10	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
busybox	source	(unstable)	(unfixed)			1127782

https://git.busybox.net/busybox/commit/archival?id=3fb6b31c716669e12f75a2accd31bb7685b1a1cb