CVE-2026-121546
ruTorrent before 5.3.20 contains a path traversal vulnerability in the datadir plugin that allows…
- Risk score
- 42/100
- CVSS
- 5.9 v3.1
- Exploit chance (30 days)
- 0.4%
- Published
- 3 Nov 2026
Open in the live forecast Today's forecast
What to know
- What it is
- ruTorrent before 5.3.20 contains a path traversal vulnerability in the datadir plugin that allows authenticated users to escape the topDirectory jail because correctDirectory() does not resolve symbolic links. Attackers can submit a datadir path through a symlink under their top directory to create directories and mov…
- Affected
- See advisory
- Fix
- Upgrade the product to 5.3.20 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 5.9 medium
References
- https://github.com/Novik/ruTorrent
- https://github.com/Novik/ruTorrent/blob/v5.3.19/php/settings.php#L526-L541
- https://github.com/Novik/ruTorrent/blob/v5.3.19/plugins/datadir/action.php#L60
- https://github.com/Novik/ruTorrent/commit/2059ff12464b2ce14fd0f53df8d6b19fb6b8a5eb
- https://github.com/Novik/ruTorrent/issues/3474
- https://www.vulncheck.com/advisories/rutorrent-before-5.3.20-path-traversal-via-datadir-plugin-symlink-following
Original description
ruTorrent before 5.3.20 contains a path traversal vulnerability in the datadir plugin that allows authenticated users to escape the topDirectory jail because correctDirectory() does not resolve symbolic links. Attackers can submit a datadir path through a symlink under their top directory to create directories and move torrent data to locations writable by the web server or rtorrent.
Last activity 3 Nov 2026. Patch Forecast updates every hour.