CrowdSecLive Exploit Tracker
Limited ExploitationCVE-2026-96655Public Exploit

Plex Media Server - SSRF (CVE-2026-96655)

PublishedSep 23, 2026
First SeenN/A
Last Seen
Reported
CVSS5.3
P
PlexPlex Media Server
web_application

Description

Plex Media Server before 1.43.3.10861 allows an authenticated user to request arbitrary internal or external addresses via the '/video/:/transcode/universal' path parameter.

psychologyCrowdSec Analysis

CVE-2026-96655 is a server-side request forgery vulnerability in Plex Media Server before 1.43.3.10861. The universal transcoder accepts an HTTP URL in its path parameter and fetches it without a host allowlist, letting an authenticated user make the server request arbitrary internal or external addresses. It is one of the steps of the Plex2Shell exploitation chain.

CrowdSec has been tracking this vulnerability and its exploits since 28th of October 2026.

CrowdSec has not observed any significant exploitation activity targeting CVE-2026-96655 across its network. As a result, no community-driven trend analysis is available for this vulnerability at this time.

Attackers send requests to /video/:/transcode/universal/start (or start.m3u8, decision) with an attacker-chosen URL in the path query parameter, e.g. path=http://169.254.169.254/latest/meta-data/, instead of a library path.

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EventDate
CVE Published2026-09-23
CISA KEV2026-10-20
Rule Released2026-10-28
CISA Remediation Deadline2026-11-03

Related Weaknesses

CWE-918: Server-Side Request Forgery (SSRF)

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

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External References