CVE-2026-96652: Plex Media Server Server-Side Request Forgery (SSRF) Vulnerability
CVSS 5.3 · Medium⚠ Actively exploited (CISA KEV)
5.3
CVSS score
Medium
Severity
Active
CISA KEV
No
Ransomware use
Nov 3, 2026
Patch deadline
⚠ Exploited in the wild. CISA added CVE-2026-96652 to its Known Exploited Vulnerabilities catalog on Oct 20, 2026, with a federal patch deadline of Nov 3, 2026 — meaning attackers are actively using it. If you run the affected software, patch it immediately.
Plex Media Server before 1.43.3.10861 allows SSRF via '/player/timeline'. An attacker using any X-Plex-Token value can include a full URL in the 'protocol' parameter and force the Plex server to POST to the attacker's chosen destination.
Details
AffectedPlex · Media Server
WeaknessCWE-918
CVSS base score5.3 (Medium)
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XPublishedSep 23, 2026
Added to CISA KEVOct 20, 2026
Federal patch deadlineNov 3, 2026
Known ransomware useNot documented
Frequently asked questions
Is CVE-2026-96652 being actively exploited?
Yes — CISA lists CVE-2026-96652 in its Known Exploited Vulnerabilities (KEV) catalog, so it is confirmed exploited in the wild. Patch it as a priority.
What does CVE-2026-96652 affect?
CVE-2026-96652 affects Plex · Media Server.
How do I fix CVE-2026-96652?
Apply the vendor’s patch for the affected software. The federal patch deadline was Nov 3, 2026. Then check whether your personal data was exposed in any related breach.