CVE-2026-19654

Name	CVE-2026-19654
Description	A unauthenticated remote peer may lead rsyslogd to crash due to a flaw in the optional imptcp module. A crafted input sequence during oversize-frame recovery can cause an invalid internal message length and terminate rsyslogd. No confidentiality or integrity impact, privilege escalation, or code execution has been identified. imtcp and the default imptcp framing modes are not affected.
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	1144616

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
rsyslog (PTS)	bullseye (security), bullseye	8.2102.0-2+deb11u1	vulnerable
	bookworm	8.2302.0-1+deb12u1	vulnerable
	trixie	8.2504.0-1	vulnerable
	forky	8.2606.0-4	vulnerable
	sid	8.2608.0-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
rsyslog	source	(unstable)	8.2608.0-1			1144616

Notes

[trixie] - rsyslog <no-dsa> (Minor issue)
https://www.openwall.com/lists/oss-security/2026/07/22/5
https://github.com/rsyslog/rsyslog/pull/7410
https://github.com/rsyslog/rsyslog/security/advisories/GHSA-cj5r-wh2m-7w29