CVE-2026-11853

Name	CVE-2026-11853
Description	Debusine is an integrated solution to build, distribute and maintain a Debian-based distribution. Debian source packages (.dsc) and upload artifacts (.changes) are manifest files that name the files that make up the artifact. The parser used to read these files in Debusine accepted arbitrary fully user-controlled paths. The mergeuploads task could be abused to create arbitrary symbolic links on a worker, overwriting any file that the worker user has access to.
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
debusine (PTS)	trixie	0.11.3	vulnerable
	forky, sid	0.14.9	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
debusine	source	(unstable)	0.14.9

Notes

[trixie] - debusine <no-dsa> (Will be fixed via point release)
https://salsa.debian.org/freexian-team/debusine/-/work_items/1484
https://salsa.debian.org/freexian-team/debusine/-/merge_requests/3103
https://salsa.debian.org/freexian-team/debusine/-/commit/c24cdc49fb258714767546bdec5b09f8065d414e