Vulnerability Intelligence Report
Plex Media Server arbitrary-host SSRF
CVE-2026-96655
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.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
4.3
MEDIUM
Exploitability:2.9
Impact Score:1.5
EPSS Probability:0.22%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-918 ↗CWE-918 Server-Side Request Forgery (SSRF)
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Plex | Media Server | 0 < 1.43.3.10861 (affected), 1.43.3.10861 (unaffected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government · CERT · USA |
| Reserved | 2026-09-23T14:42:25 |
| Published | 2026-09-23T16:06:53 |
| Patch Date | 2026-08-03 |
| Last Updated | 2026-10-20T19:58:24 |
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