VDB
CVE-2026-73216
CVE-2026-73216
PUBLISHED
CVSS 6.5 MEDIUM
Reported by GitHub_M · Published August 11, 2026
Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.17.0, shutdown_client_connection() in src/server/ns_turn_server.c prematurely calls dec_quota() and releases bandwidth accounting during the first-stage close of a mobility-enabled allocation while preserving the allocation, relay socket, session, and mobility ticket, allowing an authenticated client to bypass --user-quota and --total-quota and exhaust relay ports. This issue is fixed in version 4.17.0.
Risk Scores
CVSS 3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| coturn | coturn | < 4.17.0 |
| coturn | coturn | < 4.17.0 |
Timeline
- Aug 11, 2026 CVE Published
- Aug 11, 2026 CVE Updated
- Aug 12, 2026 Coalition ESS Score
- Aug 15, 2026 Security Advisory
- Aug 24, 2026 EPSS Score
- Aug 26, 2026 EPSS Score
- Aug 30, 2026 EPSS Score
- Sep 3, 2026 EPSS Score
- Sep 6, 2026 EPSS Score
- Sep 9, 2026 EPSS Score
- Sep 12, 2026 EPSS Score
- Sep 16, 2026 EPSS Score
References
- https://github.com/coturn/coturn/security/advisories/GHSA-f6hc-79w3-p8pq x_refsource_CONFIRM
- https://github.com/coturn/coturn/commit/3c5b2615fd405c4e7c5bf3fbeef895c94a90671b x_refsource_MISC
- https://github.com/coturn/coturn/releases/tag/4.17.0 x_refsource_MISC