{"id":"CVE-2026-43986","summary":"Tautulli vulnerable to unauthenticated SSRF in /image/\u003chash\u003e via attacker-seeded image hash replay","details":"Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Versions prior to 2.17.1 expose a public `/image/\u003chash\u003e` 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/\u003chash\u003e.png` and cause the PMS or Tautulli host to fetch an arbitrary attacker-chosen URL. Version 2.17.1 patches the issue.","aliases":["GHSA-m6j6-rc2c-8vpm"],"modified":"2026-07-08T08:13:27.726141694Z","published":"2026-06-04T14:33:36.547Z","database_specific":{"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43986.json","cwe_ids":["CWE-918"]},"references":[{"type":"WEB","url":"https://github.com/Tautulli/Tautulli/releases/tag/v2.17.1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43986.json"},{"type":"ADVISORY","url":"https://github.com/Tautulli/Tautulli/security/advisories/GHSA-m6j6-rc2c-8vpm"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43986"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/tautulli/tautulli","events":[{"introduced":"0"},{"fixed":"d7b8147944c745c9dd566ac7839ed21f941d6d1d"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"2.17.1"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v2.17.0","v2.16.1","v2.16.0","v2.15.3","v2.15.2","v2.15.1","v2.15.0","v2.14.6","v2.14.5","v2.14.4","v2.14.3","v2.14.2","v2.14.1-beta","v2.14.0-beta","v2.13.4","v2.13.3","v2.13.2","v2.13.1","v2.13.0","v2.12.5","v2.12.4","v2.12.3","v2.12.2","v2.12.1","v2.12.0","v2.12.0-beta","v2.11.1","v2.11.0","v2.10.5","v2.10.4","v2.10.3","v2.10.2","v2.10.1","v2.10.0","v2.9.7","v2.9.6","v2.9.5","v2.9.4","v2.9.3","v2.9.2","v2.9.1","v2.9.0","v2.9.0-beta","v2.8.1","v2.8.0","v2.8.0-beta","v2.7.7","v2.7.6","v2.7.5","v2.7.4","v2.7.3","v2.7.2","v2.7.1","v2.7.0","v2.7.0-beta","v2.6.10","v2.6.9","v2.6.8","v2.6.7","v2.6.6","v2.6.5","v2.6.4","v2.6.3","v2.6.2","v2.6.1","v2.6.0","v2.5.6","v2.6.0-beta","v2.5.5","v2.5.4","v2.5.3","v2.5.2","v2.5.2-beta","v2.5.1-beta","v2.5.0-beta","v2.1.38","v2.1.37","v2.1.36-beta","v2.1.35-beta","v2.1.34","v2.1.33","v2.1.32","v2.1.31","v2.1.31-beta","v2.1.30-beta","v2.1.29-beta","v2.1.28","v2.1.27-beta","v2.1.26","v2.1.25","v2.1.24-beta","v2.1.23-beta","v2.1.22","v2.1.21","v2.1.20","v2.1.20-beta","v2.1.19-beta","v2.1.18","v2.1.17-beta","v2.1.16-beta","v2.1.14","v2.1.13","v2.1.12","v2.1.11-beta","v2.1.10-beta","v2.1.9","v2.1.8-beta","v2.1.7-beta","v2.1.6-beta","v2.1.5-beta","v2.1.4","v2.1.3-beta","v2.1.2-beta","v2.1.1-beta","v2.1.0-beta","v2.0.23-beta","v2.0.22","v2.0.22-beta","v2.0.21-beta","v2.0.20-beta","v2.0.19-beta","v2.0.18-beta","v2.0.17-beta","v2.0.16-beta","v2.0.15-beta","v2.0.14-beta","v2.0.13-beta","v2.0.12-beta","v2.0.11-beta","v2.0.10-beta","v2.0.9-beta","v2.0.8-beta","v2.0.7-beta","v2.0.6-beta","v2.0.5-beta","v2.0.4-beta","v2.0.3-beta","v2.0.2-beta","v2.0.1-beta","v2.0.0-beta","v1.4.25","v1.4.24","v1.4.23","v1.4.22","v1.4.21","v1.4.20","v1.4.19","v1.4.18","v1.4.17","v1.4.16","v1.4.15","v1.4.14","v1.4.13","v1.1.3","v1.1.2","v1.1.1","v1.1.0","v1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43986.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L"}]}