ALPINE-CVE-2026-26203

Source
https://security.alpinelinux.org/vuln/CVE-2026-26203
Import Source
https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-26203.json
JSON Data
https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-26203
Upstream
Published
2026-02-19T20:25:43Z
Modified
2026-09-14T16:18:08Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

PJSIP is a free and open source multimedia communication library. Versions prior to 2.17 have a critical heap buffer underflow vulnerability in PJSIP's H.264 packetizer. The bug occurs when processing malformed H.264 bitstreams without NAL unit start codes, where the packetizer performs unchecked pointer arithmetic that can read from memory located before the allocated buffer. Version 2.17 contains a patch for the issue.

References

Affected packages

Alpine:v3.24 / pjproject

Package

Name
pjproject
Purl
pkg:apk/alpine/pjproject?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.17-r0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-26203.json"