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CVE-2026-96651 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian GovernmentCVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://forums.plex.tv/t/plex-media-server/30447/711	Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-266-01.json	Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government
https://www.cve.org/CVERecord?id=CVE-2026-96651	Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government
https://zmain.info/blog/plex2shell	Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-22	Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')	Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 23, 2026	New CVE Received	Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government
Sep 23, 2026	CVE Modified	CISA-ADP