CVE-2026-89098

Name	CVE-2026-89098
Description	A flaw was found in nfs-utils. The fsidd daemon improperly handles input received over its local domain socket by relying on program assertions to verify command arguments. A local user can exploit this vulnerability by sending a malformed request lacking the required arguments to trigger an assertion failure. This causes the daemon to crash, resulting in a Denial of Service (DoS) for filesystem identifier lookup services until restarted.
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
nfs-utils (PTS)	bookworm	1:2.6.2-4+deb12u1	vulnerable
	trixie	1:2.8.3-1	vulnerable
	forky, sid	1:3.1.1-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
nfs-utils	source	(unstable)	1:3.1.1-1

Notes

[trixie] - nfs-utils <no-dsa> (Minor issue; potential update will be handled within kernel-team)
https://bugzilla.redhat.com/show_bug.cgi?id=2469511
Fixed by: https://git.linux-nfs.org/?p=steved/nfs-utils.git;a=commit;h=32d2a1581911b418f3bdf0537a19236730df6816 (nfs-utils-2-9-3-rc4)