CVE-2026-96652
KEV: known exploited SSVC: activePlex Media Server SSRF
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Attack conditions and impact
Derived from the CNA (via NVD) CVSS 3.1 vector| Metric | Value | Meaning |
|---|---|---|
| Attack vector AV | N | Network |
| Attack complexity AC | L | Low (easy) |
| Privileges required PR | L | Regular user |
| User interaction UI | N | None |
| Scope S | U | Unchanged |
| Confidentiality C | L | Low |
| Integrity I | N | None |
| Availability A | N | None |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Description
Plex Media Server before 1.43.3.10861 allows SSRF via '/player/timeline'. An attacker using any X-Plex-Token value can include a full URL in the 'protocol' parameter and force the Plex server to POST to the attacker's chosen destination.
CISA KEV entry
Plex Media Server Server-Side Request Forgery (SSRF) Vulnerability — Plex / Media Server
Plex Media Server contains a server-side request forgery (SSRF) vulnerability which could allow an attacker using any X-Plex-Token value to include a full URL in the 'protocol' parameter and force the Plex server to POST to the attacker's chosen destination. This vulnerability can be chained with CVE-2026-96654, CVE-2026-96655, and CVE-2026-96656.
Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
https://forums.plex.tv/t/important-security-update-for-plex-media-server-v1-43-2-and-earlier/942319 ; ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-96652
CVSS assessments
| Provider | Version | Score | Vector |
|---|---|---|---|
| NVD / 9119a7d8-5eab-497f-8521-727c672e3725 (Secondary) | 4.0 | 5.3 MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD / 9119a7d8-5eab-497f-8521-727c672e3725 (Secondary) | 3.1 | 4.3 MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| CNA / cisa-cg | 3.1 | 4.3 MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| CNA / cisa-cg | 4.0 | 5.3 MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |
Affected products and packages
CNA (CVE.org)
| Vendor | Product | Versions |
|---|---|---|
| Plex | Media Server | affected: 0 … < 1.43.3.10861 unaffected: 1.43.3.10861 default: unknown |
NVD CPE (1)
Show CPE list
| Vendor | Product | Range | CPE |
|---|---|---|---|
| plex | media_server | < 1.43.3.10861 | cpe:2.3:a:plex:media_server:*:*:*:*:*:*:*:* |
Linux distribution status
References (5)
- https://forums.plex.tv/t/plex-media-server/30447/711 NVD, CNA Release Notesrelease-notes
- https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-266-01.json NVD, CNA Third Party Advisorythird-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-96652 NVD, ADP CISA-ADP US Government Resourcegovernment-resource
- https://www.cve.org/CVERecord?id=CVE-2026-96652 NVD, CNA Third Party AdvisoryVDB Entryvdb-entry
- https://zmain.info/blog/plex2shell NVD, CNA Third Party Advisorythird-party-advisory