CVE-2026-43915
Description
Coturn is a free open source implementation of TURN and STUN Server. Versions prior to 4.11.0 contain a stored cross-site scripting (XSS) vulnerability in the web-admin HTTPS interface. An attacker who can create a TURN allocation with a crafted USERNAME value can inject HTML/JavaScript that executes when an authenticated web-admin user views the TURN session list. In configurations using anonymous TURN access (--no-auth), this may be exploitable without TURN credentials. In authenticated deployments, exploitation requires valid TURN credentials or control over a provisioned username. This issue has been fixed in version 4.11.0.
How to fix
- coturn_project coturn4.11.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| coturn_project coturn | v < 4.11.0 | 4.11.0 |
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