Bug 2467812 (CVE-2026-42225)

Summary: CVE-2026-42225 pjsip: pjproject: GnuTLS backend silently skips certificate chain verification when verify_peer is false
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in PJSIP. 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.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2468336, 2468337, 2468338, 2468339    
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Description OSIDB Bzimport 2026-05-07 20:01:24 UTC
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.