CVE-2026-26967

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Source

https://cve.org/CVERecord?id=CVE-2026-26967

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-26967.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-26967

Aliases

GHSA-x2hc-6969-g8v6

Downstream

Published

2026-02-20T00:26:54Z

Modified

2026-08-12T15:32:04Z

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

Summary

PJSIP has a Heap-based Buffer Overflow vulnerability in its H.264 unpacketizer

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.

Database specific

{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-122"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26967.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "fixed":  "f821c214e52b11bae11e4cd3c7f0864538fb5491"
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}

References

Affected packages

Git / github.com/pjsip/pjproject

Affected ranges

Type

GIT

Repo

https://github.com/pjsip/pjproject

Events

Introduced

Fixed

5a457451fa2712ba18e12b01738e8ff3af2b26fd

Fixed

f821c214e52b11bae11e4cd3c7f0864538fb5491

Database specific

Show details

{
    "cpe":  "cpe:2.3:a:pjsip:pjsip:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "2.17"
        }
    ],
    "source":  [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

2.*

2.10

2.11

2.12

2.13

2.14

2.15

2.16

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-26967.json"

vanir_signatures

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        "id":  "CVE-2026-26967-6c6abe9b",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/pjsip/pjproject/commit/f821c214e52b11bae11e4cd3c7f0864538fb5491",
        "target":  {
            "file":  "pjmedia/src/pjmedia-codec/h264_packetizer.c",
            "function":  "pjmedia_h264_unpacketize"
        }
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        "source":  "https://github.com/pjsip/pjproject/commit/f821c214e52b11bae11e4cd3c7f0864538fb5491",
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vanir_signatures_modified

"2026-08-12T15:32:04Z"