CVE-2026-52835 Details
Description
Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Prior to 2.17.2, the import_config handler and the database_file branch of import_database in plexpy/webserve.py join the attacker-controlled config_file.filename or database_file.filename directly to CACHE_DIR without basename reduction or a containment check. An administrator or caller with the instance API key can submit a multipart filename containing parent-directory segments, causing the upload to be created or overwritten outside CACHE_DIR before file-content validation runs. The write is limited to paths permitted to the Tautulli process, but it can enable configuration tampering, service disruption, or code execution. This issue is fixed in version 2.17.2.
A path traversal vulnerability has been identified in Tautulli versions prior to 2.17.2. The issue arises in the import_config and import_database handlers within plexpy/webserve.py. These handlers join attacker-controlled filenames directly to the CACHE_DIR without proper validation or containment checks. This flaw allows an authenticated administrator to upload files to arbitrary locations outside the CACHE_DIR, potentially leading to unauthorized file overwrites or code execution. The vulnerability is exploitable through the Tautulli API, bypassing CSRF protections.
Users can update to Tautulli version 2.17.2 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 21, 2026CISA-ADP
Assessed Sep 21, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/Tautulli/Tautulli/security/advisories/GHSA-8ww5-pp25-3jm8 | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/Tautulli/Tautulli/commit/8c7c1a5ab09a6cca00aec995df07ce24680e7f31 | [email protected] | Source CodeVendor |
| https://github.com/Tautulli/Tautulli/releases/tag/v2.17.2 | [email protected] | Release NotesVendor |
| https://github.com/Tautulli/Tautulli/security/advisories/GHSA-8ww5-pp25-3jm8 | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
| CWE-434 | Unrestricted Upload of File with Dangerous Type | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Tautulli | <= 2.17.1 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 21, 2026 | New CVE Received | [email protected] |
| Sep 21, 2026 | CVE Modified | CISA-ADP |