CVE-2026-42225

GnuTLS backend silently skips certificate chain verification when verify_peer is false

Published May 7, 2026 CVSS 4.0 · 8.2 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4631-1 asterisk security update
History
Type Values Removed Values Added
First Time appeared Teluu
Teluu pjsip
CPEs cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:*
Vendors & Products Teluu
Teluu pjsip
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Pjsip
Pjsip pjproject
Vendors & Products Pjsip
Pjsip pjproject
Type Values Removed Values Added
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.
Title GnuTLS backend silently skips certificate chain verification when verify_peer is false
Weaknesses CWE-295
References
Metrics cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
May 8, 2026, 2:18 PM
Reserved
Apr 25, 2026, 5:37 AM
Status
Analyzed
Published
May 7, 2026, 8:16 PM
Modified
Oct 26, 2026, 8:10 PM