CVE-2026-96651: Plex Media Server before 1.43.3.10861 builds a file path from the url parameter without checking it for ../ se

Q: How do I fix CVE-2026-96651?

media server: upgrade to 1.43.0.10861. Exact commands for each OS are on this page.

Q: Is CVE-2026-96651 being exploited?

CVE-2026-96651 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-96651 affect?

CVE-2026-96651 affects media server. Severity is medium (CVSS 6.5). Plex Media Server before 1.43.3.10861 builds a file path from the url parameter without checking it for ../ sequences, allowing path traversal via '/system/agents/media/get'. A remote attacker with a valid session token could read any file

Q: How urgent is CVE-2026-96651?

Priority 37/100. No elevated risk signals yet.

Routine

MEDIUM 6.5UPGRADE

CVE-2026-96651 is a medium-severity flaw (CVSS 6.5) affecting media server. 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 builds a file path from the url parameter without checking it for ../ sequences, allowing path traversal via '/system/agents/media/get'. A remote attacker with a valid session token could read any file that the target user can access. This access includes the PlexOnlineToken, which grants control of the Plex account and server. A LAN-adjacent attacker with a client-supplied X-Forwarded-For header could exploi

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-09-23
Last modified	2026-09-29

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

Last updated 2026-09-29 · 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
2026-09-29 18:36 UTCUpdated Record last modified

plex media server UPGRADE

Affected: < 1.43.0.10861

Fixed in: 1.43.0.10861

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 1.43.0.10861 (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.

Verify at the official source NVD · CVE Program · 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-2026-96651?

media server: upgrade to 1.43.0.10861. Exact commands for each OS are on this page.

Is CVE-2026-96651 being exploited?

CVE-2026-96651 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-96651 affect?

CVE-2026-96651 affects media server. Severity is medium (CVSS 6.5). Plex Media Server before 1.43.3.10861 builds a file path from the url parameter without checking it for ../ sequences, allowing path traversal via '/system/agents/media/get'. A remote attacker with a valid session token could read any file

How urgent is CVE-2026-96651?

Priority 37/100. No elevated risk signals yet.

Software pages

Plex vulnerabilities

Related CVEs

CVE-2026-96652 MEDIUM 4.3 EXPLOITED UPGRADE Plex Media Server Server-Side Request Forgery (SSRF) Vulnerability
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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