CVE-2026-1109 cijliu librtsp rtsp_parse_request buffer overflow

Medium 4.8 Published 18 Jan 2026 Updated 23 Feb 2026

A local buffer overflow in librtsp's request parser allows attackers to execute arbitrary code or cause denial of service.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-1109?

CVE-2026-1109 is a medium-severity memory corruption vulnerability in cijliu librtsp, published on 18 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability was detected in cijliu librtsp up to 2ec1a81ad65280568a0c7c16420d7c10fde13b04. The impacted element is the function rtsp_parse_request. The manipulation results in buffer overflow. Attacking locally is a requirement. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2026-1109?

It affects 1 product.

Products include Cijliu Librtsp.

How do I fix CVE-2026-1109?

No fix has been published for CVE-2026-1109 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-1109 being exploited?

There is no known exploitation of CVE-2026-1109 in the wild and no public exploit code.

Sources

Also known as GHSA-wmgp-r59p-x29f.