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.
References (3)
Core 3
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/coturn/coturn/security/advisories/GHSA-jj76-vwjw-w34r
X_Refsource_Misc x_refsource_misc
https://github.com/coturn/coturn/commit/e72930f571beba3bc7a9f97661af2614aae92a55
X_Refsource_Misc x_refsource_misc
https://github.com/coturn/coturn/releases/tag/4.13.0
Scores
CVSS v3
6.0
EPSS
0.0024
EPSS Percentile
15.9%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-73
Status
published
Products (2)
coturn/coturn
< 4.13.0
coturn_project/coturn
< 4.13.0
Published
Jul 10, 2026
Tracked Since
Jul 11, 2026