CVE-2026-96651

Medium

Description

Plex Media Server before 1.43.3.10861 builds a file path from the url parameter without checking it for ../ sequences, allowing path traversal via '/system/agents/media/get'. A remote attacker with a valid session token could read any file that the target user can access. This access includes the PlexOnlineToken, which grants control of the Plex account and server. A LAN-adjacent attacker with a client-supplied X-Forwarded-For header could exploit the same issue.

SeverityMedium
CVSS6.5
Exploit probability—
ProductPlex Media Server
PublishedSep 23, 2026
First seenSep 23, 2026

How to fix

Update
  • plex media_server1.43.0.10861 or later

Affected products

ProductAffected versionsFixed in
plex media_serverv < 1.43.0.108611.43.0.10861

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