CVE-2026-96654
Improper Neutralization of Encoded URI Schemes in a Web Page 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 improper neutralization of encoded URI schemes in a web page vulnerability that could allow an attacker to call other plugins' functions and supply their own parameters. This vulnerability can be chained with CVE-2026-96652, CVE-2026-96655, and CVE-2026-96656.
More from Plex this year.
- CVE-2026-96656 External Control of File Name or Path, added
- CVE-2026-96655 Server-Side Request Forgery (SSRF), 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.