CVE-2026-96654
KEVPlex Media Server Improper Neutralization of Encoded URI Schemes in a Web Page Vulnerability
View CVE record →- Vendor / Project
- Plex
- Product
- Media Server
- Date added
- Oct 20, 2026
- Due date
- Oct 23, 2026
- Known ransomware use
- Unknown
- CWEs
- CWE-84
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.
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.
Notes
- https://forums.plex.tv/t/important-security-update-for-plex-media-server-v1-43-2-and-earlier/942319
- BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk
- Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk
- https://nvd.nist.gov/vuln/detail/CVE-2026-96654