CVE-2026-96656
External Control of File Name or Path in Plex Media Server. CISA confirmed attackers exploit it and added it to its Known Exploited Vulnerabilities catalog on 20 October 2026.
- Product
- Plex Media Server
- Added to CISA's catalog
- Federal fix-by date
- Ransomware
- No known use in ransomware campaigns
- Vendor advisories
- Sources
- CISA’s catalog, NVD entry
CISA’s description.
Plex Media Server contains an external control of file name or path vulnerability which can allow an admin user to write arbitrary files that may be executed on load. This vulnerability can be chained with CVE-2026-96652, CVE-2026-96654, and CVE-2026-96655.
More from Plex this year.
- CVE-2026-96655 Server-Side Request Forgery (SSRF), added
- CVE-2026-96654 Improper Neutralization of Encoded URI Schemes in a Web Page, added
- CVE-2026-96652 Server-Side Request Forgery (SSRF), added
Every flaw CISA confirmed exploited in the last 30 days is on the exploit watch. This is not security advice. Check the vendor’s advisory before acting. From CISA’s catalog of 4 November 2026.