CVE-2026-0964

Name	CVE-2026-0964
Description	A malicious SCP server can send unexpected paths that could make the client application override local files outside of working directory. This could be misused to create malicious executable or configuration files and make the user execute them under specific consequences. This is the same issue as in OpenSSH, tracked as CVE-2019-6111.
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	1127693

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libssh (PTS)	bullseye	0.9.8-0+deb11u1	vulnerable
	bullseye (security)	0.9.8-0+deb11u2	vulnerable
	bookworm	0.10.6-0+deb12u2	vulnerable
	bookworm (security)	0.10.6-0+deb12u1	vulnerable
	trixie	0.11.2-1+deb13u1	vulnerable
	forky, sid	0.12.0-3	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
libssh	source	(unstable)	0.12.0-1			1127693

Notes

[trixie] - libssh <no-dsa> (Minor issue)
[bookworm] - libssh <no-dsa> (Minor issue)
[bullseye] - libssh <postponed> (Minor issue)
https://www.libssh.org/security/advisories/CVE-2026-0964.txt
Fixed by: https://git.libssh.org/projects/libssh.git/commit/?id=a5e4b12090b0c939d85af4f29280e40c5b6600aa (libssh-0.11.4)