Patch nowWhy this label: added to the catalog 6 days ago

CVE-2026-96654Plex Media Server Improper Neutralization of Encoded URI Schemes in a Web Page Vulnerability

Product: Plex Media Server
Added to CISA KEV: October 20, 2026
Deadline for US federal agencies: October 23, 2026
Known ransomware use: Not known
EPSS, next 30 days: 1.9%, higher than 80% of scored CVEs (Oct 25, 2026)
Weakness: CWE-84

What CISA says

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.

What CISA asks you to do

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.

Sources

Also exploited recently

Data from CISA's Known Exploited Vulnerabilities catalog (public domain) and FIRST EPSS, refreshed hourly. Rheono did not find or test this vulnerability; this page summarizes public sources.