medium6.5
CVE-2026-73216
Coturn is a free open source implementation of TURN and STUN Server.
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| TURN And STUN Server. | before 4.17.0 |
Versions were read from the advisory text. No structured product data has been published for this record yet.