Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Versions prior to 2.17.1 expose `configUpdate` as a state-changing administrator endpoint, but the route does not enforce `POST` and does not use any anti-CSRF token. In the default form and JWT-based authentication mode, the administrator session cookie is issued with `SameSite=Lax`, which still permits top-level cross-site navigation requests. An attacker can exploit this by luring a logged-in administrator to a malicious page that submits a cross-site request to `/configUpdate` and overwrites the local administrator username and password. The attacker can then sign in directly with the chosen credentials and take over the Tautulli administrative interface. Version 2.17.1 patches the issue.
Metrics
Affected Vendors & Products
References
History
Thu, 04 Jun 2026 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Versions prior to 2.17.1 expose `configUpdate` as a state-changing administrator endpoint, but the route does not enforce `POST` and does not use any anti-CSRF token. In the default form and JWT-based authentication mode, the administrator session cookie is issued with `SameSite=Lax`, which still permits top-level cross-site navigation requests. An attacker can exploit this by luring a logged-in administrator to a malicious page that submits a cross-site request to `/configUpdate` and overwrites the local administrator username and password. The attacker can then sign in directly with the chosen credentials and take over the Tautulli administrative interface. Version 2.17.1 patches the issue. | |
| Title | Taultulli has CSRF in /configUpdate via missing anti-CSRF and method restriction that allows admin credential takeover | |
| Weaknesses | CWE-352 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-04T14:32:29.477Z
Reserved: 2026-05-04T20:24:31.916Z
Link: CVE-2026-43985
No data.
Status : Deferred
Published: 2026-06-04T16:16:38.083
Modified: 2026-06-04T16:20:27.330
Link: CVE-2026-43985
No data.
OpenCVE Enrichment
Updated: 2026-06-04T16:30:06Z