CVE-2026-53449
Medium
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.
SeverityMedium
CVSS6.0
Exploit probability—
ProductCoturn
PublishedJul 10, 2026
First seenJul 10, 2026
Weakness typeCWE-73CWE-73
How to fix
Update
- coturn_project coturn4.13.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| coturn_project coturn | v < 4.13.0 | 4.13.0 |
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