Coturn · Coturn · CVE-2026-43915
**Name of the Vulnerable Software and Affected Versions**
Coturn versions prior to 4.11.0
**Description**
A stored cross-site scripting (XSS) issue exists in the web-admin HTTPS interface. An attacker can inject HTML or JavaScript by creating a TURN allocation with a crafted `USERNAME` value. This script executes when an authenticated web-admin user views the TURN session list. In configurations using anonymous TURN access via the `--no-auth` flag, this can be exploited without credentials. In authenticated deployments, the attacker requires valid TURN credentials or control over a provisioned username.
**Recommendations**
Update to version 4.11.0.