CVE-2026-121546
Published:November 03, 2026
Updated:November 04, 2026
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.
Affected Packages
https://github.com/Novik/ruTorrent.git (GITHUB):
Affected version(s) =v3.10 <v5.3.20 || >=v4.0-beta3 <v5.3.20 || >=v5.0-beta1 <v5.3.20Fix Suggestion:
Update to version v5.3.20Related Resources (8)
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Contact UsCVSS v4
Base Score:
6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.9
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
LOW
Weakness Type (CWE)
Improper Link Resolution Before File Access
EPSS
Base Score:
0.40