Description
Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Versions prior to 2.17.1 expose a public `/image/<hash>` route that resolves attacker-controlled entries from `image_hash_lookup` and replays them through the same server-side image fetch logic used by authenticated image proxying. A low-privilege guest user can seed a malicious external image URL into this lookup table and then trigger server-side fetches through a fully unauthenticated endpoint. This turns an authenticated SSRF primitive into a persistent unauthenticated SSRF gadget. Once the malicious hash entry exists, any external user can request `/image/<hash>.png` and cause the PMS or Tautulli host to fetch an arbitrary attacker-chosen URL. Version 2.17.1 patches the issue.
Published: 2026-06-04
Score: 9.9 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Thu, 04 Jun 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 04 Jun 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Tautulli
Tautulli tautulli
Vendors & Products Tautulli
Tautulli tautulli

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 a public `/image/<hash>` route that resolves attacker-controlled entries from `image_hash_lookup` and replays them through the same server-side image fetch logic used by authenticated image proxying. A low-privilege guest user can seed a malicious external image URL into this lookup table and then trigger server-side fetches through a fully unauthenticated endpoint. This turns an authenticated SSRF primitive into a persistent unauthenticated SSRF gadget. Once the malicious hash entry exists, any external user can request `/image/<hash>.png` and cause the PMS or Tautulli host to fetch an arbitrary attacker-chosen URL. Version 2.17.1 patches the issue.
Title Tautulli vulnerable to unauthenticated SSRF in /image/<hash> via attacker-seeded image hash replay
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L'}


Subscriptions

Tautulli Tautulli
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-06-04T17:29:15.849Z

Reserved: 2026-05-04T20:24:31.916Z

Link: CVE-2026-43986

cve-icon Vulnrichment

Updated: 2026-06-04T17:29:12.419Z

cve-icon NVD

Status : Deferred

Published: 2026-06-04T16:16:38.290

Modified: 2026-06-04T18:16:30.743

Link: CVE-2026-43986

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-04T16:30:06Z

Weaknesses