coturn: Coturn is a free open source implementation of TURN and STUN Server
CVE-2026-73213 is fixed in coturn on 1 platform by DEBIAN-CVE-2026-73213 (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 4.16.0, addr_less_eq() in src/client/ns_turn_ioaddr.c uses a component-wise comparison for native IPv6 min-max intervals in ioa_addr_in_range(), allowing an authenticated TURN client to relay to an IPv6 peer that is numerically within a configured non-prefix-aligned denied-peer-ip range but is classified as outside it. This issue is fixed in version 4.16.0.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| coturn · Debian 14 | 4.18.0-1 | DEBIAN-CVE-2026-73213 | Aug 11, 2026 |
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