No. CVE-2026-96656
Plex Media Server flaw lets an admin write files that run
Being used now
Yes. Attackers are using this right now.
People who run Plex Media Server. Used together with three other Plex flaws.
What to do
Update Plex Media Server to the latest version.
Confirmed in attacksOct 20, 2026
ProductPlex Media Server
Attack likelihood, next 30 days1.8%
Attack likelihood is EPSS, a daily estimate from FIRST.org of how likely this bug is to be used in attacks in the next 30 days.
The official description
Plex Media Server contains an external control of file name or path vulnerability which can allow an admin user to write arbitrary files that may be executed on load. This vulnerability can be chained with CVE-2026-96652, CVE-2026-96654, and CVE-2026-96655.
For your tech helper or AI assistant
A read-only checklist. Paste it into Claude, ChatGPT or a coding agent; it only looks and changes nothing.
Read-only check, change nothing, send nothing anywhere.
Is Plex Media Server (CVE-2026-96656) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2026-96656. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.