Incorrect Authorization Affecting coturn package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.3% (23rd percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-COTURN-18616791
  • published12 Aug 2026
  • disclosed11 Aug 2026

Introduced: 11 Aug 2026

NewCVE-2026-73213  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

There is no fixed version for Debian:unstable coturn.

NVD Description

Note: Versions mentioned in the description apply only to the upstream coturn package and not the coturn package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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.