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Medium 4.3Known exploited (CISA KEV)Published Sep 23, 2026

CVE-2026-96652Plex Media Server SSRF

Updated under an hour ago ()

Does this affect you?

It affects Plex Media Server. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Oct 20, 2026; federal agencies must remediate by Nov 3, 2026. Treat that date as your deadline.

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.

CVSS
4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE)
CWE-918
Known exploited
Added to CISA KEV Oct 20, 2026; federal remediation due Nov 3, 2026Apply 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.
EPSS (exploitation in the next 30 days)
1.82% (percentile 79)
Assigned by
cisa-cg
NVD analysis
Analyzed
Record last updated
Oct 20, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Plex Media Server
plex:media_server (from the name)
before 1.43.3.10861; 1.43.3.10861 not affected
CNA record
plex media_server
plex:media_server
before 1.43.3.10861
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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