UBUNTU-CVE-2026-26967

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Source
https://ubuntu.com/security/CVE-2026-26967
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26967.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-26967
Upstream
Published
2026-02-20T01:15:00Z
Modified
2026-02-27T09:59:13Z
Severity
  • 8.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U CVSS Calculator
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

PJSIP is a free and open source multimedia communication library written in C. In versions 2.16 and below, there is a critical Heap-based Buffer Overflow vulnerability in PJSIP's H.264 unpacketizer. The bug occurs when processing malformed SRTP packets, where the unpacketizer reads a 2-byte NAL unit size field without validating that both bytes are within the payload buffer bounds. The vulnerability affects applications that receive video using H.264. A patch is available at https://github.com/pjsip/pjproject/commit/f821c214e52b11bae11e4cd3c7f0864538fb5491.

References

Affected packages

Ubuntu:16.04:LTS / pjproject

Package

Name
pjproject
Purl
pkg:deb/ubuntu/pjproject@2.1.0.0.ast20130823-1+deb8u1build0.16.04.1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.1.0.0.ast20130823-1
2.1.0.0.ast20130823-1+deb8u1build0.16.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libpj2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "libpjlib-util2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "libpjmedia-audiodev2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "libpjmedia-codec2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "libpjmedia-videodev2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "libpjmedia2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "libpjnath2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "libpjproject-dev",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "libpjsip-simple2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "libpjsip-ua2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "libpjsip2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "libpjsua2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26967.json"

Ubuntu:18.04:LTS / pjproject

Package

Name
pjproject
Purl
pkg:deb/ubuntu/pjproject@2.7.2~dfsg-1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.6~dfsg-2
2.7~dfsg-1
2.7.1~dfsg-1
2.7.1~dfsg-1build1
2.7.2~dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libpj2",
            "binary_version": "2.7.2~dfsg-1"
        },
        {
            "binary_name": "libpjlib-util2",
            "binary_version": "2.7.2~dfsg-1"
        },
        {
            "binary_name": "libpjmedia-audiodev2",
            "binary_version": "2.7.2~dfsg-1"
        },
        {
            "binary_name": "libpjmedia-codec2",
            "binary_version": "2.7.2~dfsg-1"
        },
        {
            "binary_name": "libpjmedia-videodev2",
            "binary_version": "2.7.2~dfsg-1"
        },
        {
            "binary_name": "libpjmedia2",
            "binary_version": "2.7.2~dfsg-1"
        },
        {
            "binary_name": "libpjnath2",
            "binary_version": "2.7.2~dfsg-1"
        },
        {
            "binary_name": "libpjproject-dev",
            "binary_version": "2.7.2~dfsg-1"
        },
        {
            "binary_name": "libpjsip-simple2",
            "binary_version": "2.7.2~dfsg-1"
        },
        {
            "binary_name": "libpjsip-ua2",
            "binary_version": "2.7.2~dfsg-1"
        },
        {
            "binary_name": "libpjsip2",
            "binary_version": "2.7.2~dfsg-1"
        },
        {
            "binary_name": "libpjsua2",
            "binary_version": "2.7.2~dfsg-1"
        },
        {
            "binary_name": "libpjsua2-2v5",
            "binary_version": "2.7.2~dfsg-1"
        },
        {
            "binary_name": "python-pjproject",
            "binary_version": "2.7.2~dfsg-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26967.json"