CVE-2026-115207

Name	CVE-2026-115207
Description	A flaw was found in GNU patch. An attacker can achieve arbitrary file creation outside the intended working directory by enticing a user or automated workflow to apply a specially crafted patch file. Due to missing validation during automatic patch reversal, absolute file paths in patch headers are accepted rather than rejected. Consequently, the utility can create files in arbitrary locations with the permissions of the executing user.
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
patch (PTS)	bookworm	2.7.6-7	vulnerable
	forky, trixie	2.8-2	vulnerable
	sid	2.8.1-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
patch	source	(unstable)	2.8.1-1

Notes

[trixie] - patch <no-dsa> (Minor issue)
Fixed by: https://cgit.git.savannah.gnu.org/cgit/patch.git/commit/?id=0cd45bb2132a42cd38d84b20661f3eae9b4da7ce (v2.8.1)
https://bugzilla.redhat.com/show_bug.cgi?id=2558775