CVE-2026-34235

PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, a heap out-of-bounds read vulnerability exists in PJSIP's VP9 RTP unpacketizer that occurs when parsing crafted VP9 Scalability Structure (SS) data. Insufficient bounds checking on the payload descriptor length may cause reads beyond the allocated RTP payload buffer. This issue has been patched in version 2.17. A workaround for this issue involves disabling VP9 codec if not needed.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/pjsip/pjproject/commit/f4c7d08211da1fe2ad1504434a0ad99d12aa7536	Patch
https://github.com/pjsip/pjproject/security/advisories/GHSA-pqrm-53pc-wx28	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-31 16:16

Updated : 2026-07-24 20:10

NVD link : CVE-2026-34235

Mitre link : CVE-2026-34235

CVE.ORG link : CVE-2026-34235

JSON object : View

Products Affected

teluu

pjsip

CWE

CWE-125

Out-of-bounds Read

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Este problema ha sido parcheado en la versi\u00f3n 2.17. Una soluci\u00f3n alternativa para este problema implica deshabilitar el c\u00f3dec VP9 si no es necesario."}], "lastModified": "2026-07-24T20:10:00.147", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3CEC20D0-E450-41AD-BCF9-4E407594F2A7", "versionEndExcluding": "2.17"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}