CVE-2026-42225— GnuTLS backend silently skips certificate chain verification when verify_peer is false
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I. Basic Information for CVE-2026-42225
Vulnerability Information
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Vulnerability Title
GnuTLS backend silently skips certificate chain verification when verify_peer is false
Source: NVD (National Vulnerability Database)
Vulnerability 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: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
证书验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
PJSIP 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PJSIP是pjsip开源的一个免费和开源的多媒体通信库，用C语言编写，实现基于标准的协议，如SIP, SDP, RTP, STUN, TURN，和ICE。 PJSIP 2.17之前版本存在信任管理问题漏洞，该漏洞源于在GnuTLS构建中，SIP TLS传输可能接受无效或不受信任证书的连接，即使应用程序明确启用证书验证。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-42225
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- Release PJSIP version 2.17 · pjsip/pjproject · GitHubx_refsource_MISC
- Merge commit from fork · pjsip/pjproject@ef68425 · GitHubx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-42225
IV. Related Vulnerabilities
Same product: pjproject
- CVE-2026-41416
PJSIP: Asymmetric ptime integer overflow in Media Stream - CVE-2026-41415
PJSIP: SIP Multipart CID URI Length Underflow - CVE-2026-40892
PJSIP: Stack buffer overflow in pjsip_auth_create_digest2() - CVE-2026-40614
PJSIP: Heap buffer overflow in Opus codec decoding - CVE-2026-34235
PJSIP: Heap OOB read in VPX unpacketizer
Same vendor: pjsip
- CVE-2026-41416
PJSIP: Asymmetric ptime integer overflow in Media Stream - CVE-2026-41415
PJSIP: SIP Multipart CID URI Length Underflow - CVE-2026-40892
PJSIP: Stack buffer overflow in pjsip_auth_create_digest2() - CVE-2026-40614
PJSIP: Heap buffer overflow in Opus codec decoding - CVE-2026-34235
PJSIP: Heap OOB read in VPX unpacketizer
Same weakness: CWE-295
V. Comments for CVE-2026-42225
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