CVE-2026-42225

Name	CVE-2026-42225
Description	PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, on GnuTLS builds, the SIP TLS transport (sip_transport_tls) can accept connections with invalid or untrusted certificates even when the application explicitly enables certificate verification via verify_server = PJ_TRUE or verify_client = PJ_TRUE. This issue has been patched in version 2.17.
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	1136007

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
asterisk (PTS)	bullseye	1:16.28.0~dfsg-0+deb11u4	vulnerable
	bullseye (security)	1:16.28.0~dfsg-0+deb11u9	vulnerable
	sid	1:22.9.0+dfsg+~cs6.16.60671434-1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
asterisk	source	(unstable)	(unfixed)			1136007
pjproject	source	(unstable)	(unfixed)

Notes

https://github.com/pjsip/pjproject/security/advisories/GHSA-x2fv-6j6c-pxmx
https://github.com/pjsip/pjproject/commit/ef684252bb62b0716675b6e99ad7fe4c90e28920 (2.17)