October 20, 2026 · Applied Cybernetics Group
CVE-2026-96652 Plex Media Server
Plex Media Server Server-Side Request Forgery (SSRF) Vulnerability
- Added to KEV
2026-10-20- Federal due date
2026-11-03- Vendor
- Plex
- Product
- Media Server
- EPSS
- 96.1th percentile (score 0.119, as of
2026-11-06) - NVD CVSS v3.1
- 4.3 (MEDIUM)
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2026-96652
CISA short description
Plex Media Server contains a server-side request forgery (SSRF) vulnerability which could allow an attacker using any X-Plex-Token value to include a full URL in the 'protocol' parameter and force the Plex server to POST to the attacker's chosen destination. This vulnerability can be chained with CVE-2026-96654, CVE-2026-96655, and CVE-2026-96656.
Required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
NVD description
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.