{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43986", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-04T20:24:31.916Z", "datePublished": "2026-06-04T14:33:36.547Z", "dateUpdated": "2026-06-04T17:29:15.849Z"}, "containers": {"cna": {"title": "Tautulli vulnerable to unauthenticated SSRF in /image/<hash> via attacker-seeded image hash replay", "problemTypes": [{"descriptions": [{"cweId": "CWE-918", "lang": "en", "description": "CWE-918: Server-Side Request Forgery (SSRF)", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 9.9, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/Tautulli/Tautulli/security/advisories/GHSA-m6j6-rc2c-8vpm", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/Tautulli/Tautulli/security/advisories/GHSA-m6j6-rc2c-8vpm"}, {"name": "https://github.com/Tautulli/Tautulli/releases/tag/v2.17.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/Tautulli/Tautulli/releases/tag/v2.17.1"}], "affected": [{"vendor": "Tautulli", "product": "Tautulli", "versions": [{"version": "< 2.17.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-04T14:33:36.547Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-m6j6-rc2c-8vpm", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/Tautulli/Tautulli/security/advisories/GHSA-m6j6-rc2c-8vpm", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-04T17:28:57.623297Z", "id": "CVE-2026-43986", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-04T17:29:15.849Z"}}]}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-43986", "lastModified": "2026-06-04T16:20:27.330", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 9.9, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 6.0, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-06-04T16:16:38.290", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/Tautulli/Tautulli/releases/tag/v2.17.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/Tautulli/Tautulli/security/advisories/GHSA-m6j6-rc2c-8vpm"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-918"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.17.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Tautulli", "source": "cna", "vendor": "Tautulli"}, "product": "tautulli", "vendor": "tautulli"}], "created": "2026-06-04T16:30:06.053867+00:00", "updated": "2026-06-04T16:30:06.453317+00:00", "vendors": ["tautulli", "tautulli$PRODUCT$tautulli"]}