CVE-2026-96656
Plex Media Server before 1.43.3.10861 allows an admin user to write arbitrary files that may be executed on load. The preference TranscoderH264Options is appended verbatim to x264's option string on every transcode. At startup, all .so files are run without signature, execute bit, or symbol checks.
- Published Sep 23, 2026
- CVSS 8.6 high
- 0.4% chance of exploitation in the next 30 days (EPSS)
- A fix is available