CVE-2026-114230

Name	CVE-2026-114230
Description	When dispatching SASL frames to authenticate the peer, Proton will also dispatch AMQP frames if they claim to be SASL frames. This allows authentication bypass. However there will be no user name set so the effects depend on how the application deals with this condition - which otherwise means that authentication has not completed yet. This issue affects Apache Qpid Proton C: through 0.40.0. Users are recommended to upgrade to version 0.41.1, which fixes the issue.
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	1152779

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
qpid-proton (PTS)	bookworm	0.37.0-2	vulnerable
	trixie	0.37.0-6	vulnerable
	forky	0.37.0-10	vulnerable
	sid	0.41.1-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
qpid-proton	source	(unstable)	0.41.1-1			1152779

Notes

[trixie] - qpid-proton <no-dsa> (Minor issue)
https://www.openwall.com/lists/oss-security/2026/10/28/24
https://issues.apache.org/jira/browse/PROTON-2945
https://github.com/apache/qpid-proton/commit/94e2df384a493cbb8a4870a40d90e08708e131eb (0.41.1-rc1)
https://github.com/apache/qpid-proton/commit/b7fb4507bb233db10825e6ffd456086dedca22f6 (0.41.1-rc1)