CVE-2026-15811

Name	CVE-2026-15811
Description	A vulnerability was found in kronosnet's (version <=1.34) cryptographic configuration management. The framework does not correctly zero-out or wipe sensitive memory segments after executing changes to its cryptographic configuration. This omission leaves raw encryption keys resident in memory after the associated structures are freed. A local attacker capable of leveraging memory disclosure techniques could exploit this flaw to retrieve the active encryption key, allowing them to decrypt cluster network communications or inject malicious packets to cause severe high-availability cluster instability.
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	1142847

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
kronosnet (PTS)	bullseye	1.20-4	vulnerable
	bookworm	1.25-1	vulnerable
	trixie	1.31-1	vulnerable
	forky, sid	1.33-1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
kronosnet	source	(unstable)	(unfixed)			1142847

Notes

[trixie] - kronosnet <no-dsa> (Minor issue)
[bookworm] - kronosnet <postponed> (Minor issue)
[bullseye] - kronosnet <postponed> (Minor issue)
https://bugzilla.redhat.com/show_bug.cgi?id=2500849