VULNERABILITY INTELLIGENCE

CVE-2026-73216

CVSS score6.5 MEDIUM
EPSS probability0.57%
CISA KEVNot currently listed
Published2026-08-11
Last modified2026-09-09
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

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.

Weakness classification

  • security-advisories@github.com: CWE-400

Primary references