CVE catalog

CVE-2026-73212

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.13.1, good_peer_addr() in src/server/ns_turn_server.c uses ioa_addr_in_range() in src/client/ns_turn_ioaddr.c without ca

[CVE catalog]

Severity
High · CVSS 7.7CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L
Published
Source
[NVD] · [CVE record]
EPSS
0.50% · Oct 25, 2026

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.13.1, good_peer_addr() in src/server/ns_turn_server.c uses ioa_addr_in_range() in src/client/ns_turn_ioaddr.c without canonicalizing IPv4-compatible, 6to4, and 64:ff9b::/96 NAT64 address forms, allowing an authenticated RFC 6062 TCP CONNECT relay client to bypass an IPv4 denied-peer-ip range when the Coturn host has a useful translation route. This issue is fixed in version 4.13.1.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debiancoturnsid4.18.0-1fixed
Debiancoturnforky4.18.0-1fixed
Debiancoturntrixie4.6.1-2vulnerable
Debiancoturnbookworm4.6.1-1vulnerable
Ubuntucoturn16.044.4.5.4-2vulnerable
Ubuntucoturn16.044.5.0.2-3vulnerable
Ubuntucoturn16.044.5.0.3-1vulnerable
Ubuntucoturn16.044.5.0.3-1build1vulnerable
Ubuntucoturn16.044.5.0.3-1ubuntu0.2vulnerable
Ubuntucoturn16.044.5.0.3-1ubuntu0.3vulnerable
Ubuntucoturn16.044.5.0.3-1ubuntu0.4vulnerable
Ubuntucoturn18.044.5.0.6-1ubuntu2vulnerable
Ubuntucoturn18.044.5.0.7-1ubuntu1vulnerable
Ubuntucoturn18.044.5.0.7-1ubuntu2vulnerable
Ubuntucoturn18.044.5.0.7-1ubuntu2.18.04.1vulnerable
Ubuntucoturn18.044.5.0.7-1ubuntu2.18.04.2vulnerable
Ubuntucoturn18.044.5.0.7-1ubuntu2.18.04.3vulnerable
Ubuntucoturn20.044.5.1.1-1.1build1vulnerable
Ubuntucoturn20.044.5.1.1-1.1build2vulnerable
Ubuntucoturn20.044.5.1.1-1.1ubuntu0.20.04.1vulnerable
Ubuntucoturn20.044.5.1.1-1.1ubuntu0.20.04.2vulnerable
Ubuntucoturn22.044.5.2-3vulnerable
Ubuntucoturn22.044.5.2-3.1~ubuntu22.04.1vulnerable
Ubuntucoturn24.044.6.1-1build1vulnerable
Ubuntucoturn24.044.6.1-1build2vulnerable
Ubuntucoturn24.044.6.1-1build3vulnerable
Ubuntucoturn24.044.6.1-1build4vulnerable
Ubuntucoturn26.044.6.1-2build1vulnerable
Ubuntucoturn26.044.6.1-2build2vulnerable

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debiancoturnsourcesid4.14.0-1not yet assignedNot reportedNot reported
Debiancoturnsourceforky4.14.0-1not yet assignedNot reportedNot reported
Debiancoturnsourcetrixie(unfixed)not yet assignedNot reportedNot reported
Debiancoturnsourcebookworm(unfixed)not yet assignedNot reportedNot reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • [coturn]Affected
    Details (2)

    • 4.6.1-1 · amd64 · bookworm

      Affected

      nvd · coturn · debian · bookworm; nvd · coturn · debian · 12

    • 4.6.1-1 · arm64 · bookworm

      Affected

      nvd · coturn · debian · bookworm; nvd · coturn · debian · 12

[Debian 13 (Trixie)]

  • [coturn]Affected

    Source package: [coturn]

    Details (2)

    • 4.6.1-2 · amd64 · trixie

      Affected

      nvd · coturn · debian · 13

    • 4.6.1-2+b2 · arm64 · trixie

      Affected

      nvd · coturn · debian · 13

Observed:

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]