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

Q: How do I fix CVE-2026-96652?

media server: upgrade to 1.43.3.10861. Exact commands for each OS are on this page.

Q: Is CVE-2026-96652 being exploited?

Yes. CVE-2026-96652 is on the CISA Known Exploited Vulnerabilities list, so treat it as patch-now.

Q: What does CVE-2026-96652 affect?

CVE-2026-96652 affects media server. Severity is medium (CVSS 4.3). 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.

Q: How urgent is CVE-2026-96652?

Priority 55/100. Exploited in the wild (CISA KEV); Public exploit reference

Patch now

MEDIUM 4.3EXPLOITEDUPGRADE

CVE-2026-96652 is a medium-severity flaw (CVSS 4.3) affecting media server, reported as exploited in the wild. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Exploited in the wild (CISA KEV)
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 61%)
CISA exploited list	Yes, fix due 2026-11-03
Weakness	CWE-918
Published	2026-09-23
Last modified	2026-10-21

Publisher (CNA): Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government · Vendor: plex

Last updated 2026-10-21 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-23 17:17 UTCPublished CVE record published
2026-10-20Exploited Added to the CISA Known Exploited Vulnerabilities list
2026-10-21 13:09 UTCUpdated Record last modified
2026-11-03Deadline CISA due date for US federal agencies to patch

plex media server UPGRADE

Affected: < 1.43.3.10861

Fixed in: 1.43.3.10861

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy media-server || rpm -q media-server || media-server --version

2. UPGRADE to 1.43.3.10861 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade media-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade media-server

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Fedora 46 · retext · FIXED · 8.1.0-1.fc46 · FEDORA-2026-0602a84203 · source

sudo dnf upgrade --advisory=FEDORA-2026-0602a84203

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

GitHub PoC: code-zm/plex2shell (96 stars)
GitHub PoC: gmh5225/plex2shell (0 stars)
GitHub PoC: ChrisLPJones/plex2shell-check (0 stars)

Advisories and coverage

Official advisories

CISA Alerts and Advisories: CISA Adds Six Known Exploited Vulnerabilities to Catalog 2026-10-20

Research and news

The Hacker News: CISA Orders Federal Agencies to Patch Exploited Plex2Shell, Siemens, and SiteGuard Flaws 2026-10-21

Verify at the official source NVD · CVE Program · CISA KEV catalog · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-96652?

media server: upgrade to 1.43.3.10861. Exact commands for each OS are on this page.

Is CVE-2026-96652 being exploited?

Yes. CVE-2026-96652 is on the CISA Known Exploited Vulnerabilities list, so treat it as patch-now.

What does CVE-2026-96652 affect?

CVE-2026-96652 affects media server. Severity is medium (CVSS 4.3). 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.

How urgent is CVE-2026-96652?

Priority 55/100. Exploited in the wild (CISA KEV); Public exploit reference

Related CVEs

CVE-2026-96654 MEDIUM 6.5 EXPLOITED UPGRADE Plex Media Server Improper Neutralization of Encoded URI Schemes in a Web Page Vulnerability
CVE-2026-96655 MEDIUM 4.3 EXPLOITED UPGRADE Plex Media Server Server-Side Request Forgery (SSRF) Vulnerability
CVE-2026-96656 HIGH 7.2 EXPLOITED UPGRADE Plex Media Server External Control of File Name or Path Vulnerability

References

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