VDB
CVE-2026-43915
CVE-2026-43915
PUBLISHED
CVSS 5.4 MEDIUM
Reported by GitHub_M · Published June 18, 2026
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.
Risk Scores
CVSS 3.1
5.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| coturn | coturn | < 4.11.0 |
| coturn | coturn | < 4.11.0 |
Timeline
- Jun 18, 2026 CVE Published
- Jun 18, 2026 CVE Updated
- Jun 19, 2026 Coalition ESS Score
- Jun 23, 2026 Security Advisory
- Aug 7, 2026 EPSS Score
- Aug 24, 2026 EPSS Score
- Sep 1, 2026 EPSS Score
- Sep 9, 2026 EPSS Score
- Sep 12, 2026 EPSS Score
- Sep 17, 2026 EPSS Score
- Sep 18, 2026 EPSS Score
- Sep 24, 2026 EPSS Score
References
- https://github.com/coturn/coturn/security/advisories/GHSA-xxf5-9vj2-g84j x_refsource_CONFIRM
- https://github.com/coturn/coturn/releases/tag/4.11.0 x_refsource_MISC