CVE-2026-96656
Plex Media Server arbitrary file write
Description
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.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:HPrivileges RequiredHigh
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
Plex
commercialaka plex media server
Exploitability
Official Patch Available
References
https://forums.plex.tv/t/plex-media-server/30447/711
forums.plex.tv
https://www.cve.org/CVERecord?id=CVE-2026-96656
cve.org
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-266-01.json
raw.githubusercontent.com
and 6 more references View all →
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