CVE-2026-96655: CWE-918 Server-Side Request Forgery (SSRF) in Plex Media Server
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.
AI Analysis
Technical Summary
This vulnerability (CWE-918) in Plex Media Server allows an authenticated user to exploit the '/video/:/transcode/universal' path parameter to perform SSRF attacks. By crafting requests to this endpoint, the attacker can cause the server to send requests to arbitrary internal or external addresses. The issue affects all versions from initial releases up to but not including 1.43.3.10861.
Potential Impact
An authenticated user can leverage this SSRF vulnerability to make the Plex Media Server send requests to arbitrary internal or external network locations. The CVSS vector indicates a network attack vector with low attack complexity and requiring low privileges but no user interaction. The impact is limited to partial confidentiality loss, with no integrity or availability impact reported.
Mitigation Recommendations
A fixed version 1.43.3.10861 or later is available to address this vulnerability. Users should upgrade Plex Media Server to version 1.43.3.10861 or newer to remediate this issue. No additional mitigations or workarounds are indicated in the provided data.
CVE-2026-96655: CWE-918 Server-Side Request Forgery (SSRF) in Plex Media Server
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.
CVSS v3.1
Score 4.3medium
Affected software
Plex
Media Server
pkg:github/plex/mediaserverRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-918) in Plex Media Server allows an authenticated user to exploit the '/video/:/transcode/universal' path parameter to perform SSRF attacks. By crafting requests to this endpoint, the attacker can cause the server to send requests to arbitrary internal or external addresses. The issue affects all versions from initial releases up to but not including 1.43.3.10861.
Potential Impact
An authenticated user can leverage this SSRF vulnerability to make the Plex Media Server send requests to arbitrary internal or external network locations. The CVSS vector indicates a network attack vector with low attack complexity and requiring low privileges but no user interaction. The impact is limited to partial confidentiality loss, with no integrity or availability impact reported.
Mitigation Recommendations
A fixed version 1.43.3.10861 or later is available to address this vulnerability. Users should upgrade Plex Media Server to version 1.43.3.10861 or newer to remediate this issue. No additional mitigations or workarounds are indicated in the provided data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- cisa-cg
- Date Reserved
- 2026-09-23T14:42:25.245Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab3ff4ff7a7c541060b3042
Added to database: 09/23/2026, 16:33:19 UTC
Last enriched: 09/23/2026, 16:47:54 UTC
Last updated: 09/24/2026, 01:57:04 UTC
Views: 9
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