CVE-2026-121546 | BDVDB-2026-400019 Detail
NovikruTorrent
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.
Impact#
Per CVSS v3.1: confidentiality impact none, integrity impact high, availability impact low. Attack vector: network.
Weaknesses#
- CWE-59 Improper Link Resolution Before File Access ('Link Following')
References#
- https://github.com/Novik/ruTorrent/issues/3474
- https://github.com/Novik/ruTorrent
- https://github.com/Novik/ruTorrent/commit/2059ff12464b2ce14fd0f53df8d6b19fb6b8a5eb
- https://github.com/Novik/ruTorrent/blob/v5.3.19/plugins/datadir/action.php#L60
- https://github.com/Novik/ruTorrent/blob/v5.3.19/php/settings.php#L526-L541
- https://www.vulncheck.com/advisories/rutorrent-before-5.3.20-path-traversal-via-datadir-plugin-symlink-following
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.