CVE-2026-110717 Janus WebRTC Server through 1.4.3 Path Traversal via Record&Play Filename
Unauthenticated attackers can write or truncate arbitrary files outside the recordings directory via crafted filenames in the Record&Play plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-110717?
CVE-2026-110717 is a medium-severity path traversal vulnerability in meetecho janus-gateway, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Janus WebRTC Server through 1.4.3 contains a path traversal vulnerability in the Record&Play plugin that allows unauthenticated attackers to write files outside recordings_path via the record request filename. Attackers can supply filenames with path separators to create or truncate files ending in -audio.mjr, -video.mjr or -data.mjr anywhere the Janus process can write outside protected folders.
Weakness: CWE-22
Which versions are affected by CVE-2026-110717?
How do I fix CVE-2026-110717?
No fix has been published for CVE-2026-110717 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-110717 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-110717 exists.
Sources
Also known as DEBIAN-CVE-2026-110717, GHSA-rwr7-3rqr-7qwv, UBUNTU-CVE-2026-110717.