CVE-2026-85231

Name	CVE-2026-85231
Description	A flaw was found in libtirpc. An authenticated remote attacker could exploit this vulnerability by sending oversized wrapped data requests to an RPC (Remote Procedure Call) service configured with RPCSEC_GSS (Remote Procedure Call Security-Generic Security Service) integrity or privacy. This can lead to unbounded memory allocation, resulting in a Denial of Service (DoS) by exhausting system resources and causing the service to become unstable or terminate.
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	1151100

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libtirpc (PTS)	bookworm	1.3.3+ds-1	vulnerable
	trixie	1.3.6+ds-1	vulnerable
	forky, sid	1.3.7+ds-1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
libtirpc	source	(unstable)	(unfixed)			1151100

Fixed by: http://git.linux-nfs.org/?p=steved/libtirpc.git;a=commit;h=65d27459fe569a678cb5cc67d308bcf12c49cb40 (libtirpc-1-3-8-rc2)