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VulnerabilityPublished Updated

CVE-2026-96652: Plex Media Server · Server-Side Request Forgery (SSRF)

Affects Plex Media ServerSource CVE Database V5

0
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Exploited in the wild · KEV due 3 Nov 2026 · public detection template (Nuclei) · 11% EPSS : upgrade to 1.43.3.10861 now.

Data as of 6 Nov 2026, 23:24 UTC

CVSS 3.1 base score
4.3Medium
How severe the flaw is on the 0–10 CVSS scale.
KEV deadline
 US federal agencies must patch by this date; a sensible deadline for everyone else. Other KEV due dates
EPSS
11.8% chance of exploitation in 30 days – higher than 96% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.43.3.10861
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Exploitation evidence

t = 0 is the CVE’s publication on cve.org

  1. Disclosed: evidence found.

    CVE published 23 Sep 2026

  2. Weaponized: evidence found.

    Public exploit code: GitHub proofs of concept

  3. Exploited in the wild: evidence found.

    Listed in CISA KEV 27 days after disclosure

  4. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

Timeline

  1. CVE ID reserved

    by Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government

    , 1 hour before disclosure

  2. CVE published

    on cve.org

    , t = 0

  3. In Threat Radar

    record ingested

    , 27 minutes after disclosure

  4. , 27 days after disclosure

  5. KEV remediation due

    US federal deadline

    , 41 days after disclosure

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, CISA KEV (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 7 Nov 2026.

What to do

Upgrade Plex Media Server to 1.43.3.10861.

Affected software

ProductAffectedFixed in
PlexMedia ServerAffected
  • <1.43.3.10861
Fixed in
  • 1.43.3.10861

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.

References

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