CVE-2026-73213

NameCVE-2026-73213
DescriptionCoturn 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.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1144385

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
coturn (PTS)bullseye4.5.2-3vulnerable
bookworm4.6.1-1vulnerable
trixie4.6.1-2vulnerable
forky, sid4.15.0-1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
coturnsource(unstable)(unfixed)1144385

Notes

https://github.com/coturn/coturn/security/advisories/GHSA-4v97-rxjj-4f99
Fixed by: https://github.com/coturn/coturn/commit/6c13608c28a04af5d63abddd7565a0dcc4771c28 (4.16.0)

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