coturn: Coturn is a free open source implementation of TURN and STUN Server
CVE-2026-73216 is fixed in coturn on 1 platform by DEBIAN-CVE-2026-73216 (version 4.18.0-1), released August 11, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| coturn · Debian 14 | 4.18.0-1 | DEBIAN-CVE-2026-73216 | Aug 11, 2026 |
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