Risk Letters

Exploited vulnerability

CVE-2026-96656

TLP:CLEAR

Plex Media Server External Control of File Name or Path Vulnerability

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.

Facts

  • Vendor: Plex
  • Product: Media Server
  • CVSS: 8.6
  • EPSS (probability of exploitation within 30 days): 1.8 %
  • On CISA's Known Exploited Vulnerabilities list since: 20 October 2026
  • First known exploitation: 18 October 2026
  • CISA's deadline for US federal agencies: 23 October 2026
  • Weakness: CWE-73
  • First seen by Risk Letters: 20 October 2026

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD