CVE-2026-53449 | THREATINT

Description

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.13.0, the psd print sessions dump CLI command in coturn takes a filename argument and directly passes it to fopen with no path validation. An authenticated admin with CLI access can overwrite arbitrary files writable by the coturn process because the command string is used as-is after stripping the psd prefix and leading spaces, allowing truncation and overwrite with session dump data. This issue is fixed in version 4.13.0.

PUBLISHED Reserved 2026-06-09 | Published 2026-07-10 | Updated 2026-07-13 | Assigner GitHub_M

MEDIUM: 6.0CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

Problem types

CWE-73: External Control of File Name or Path

Product status

< 4.13.0

affected

References

github.com/...coturn/security/advisories/GHSA-jj76-vwjw-w34r exploit

github.com/...coturn/security/advisories/GHSA-jj76-vwjw-w34r

github.com/...ommit/e72930f571beba3bc7a9f97661af2614aae92a55

github.com/coturn/coturn/releases/tag/4.13.0

cve.org (CVE-2026-53449)

nvd.nist.gov (CVE-2026-53449)

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