CVE-2026-96656High· 7.2▾ Abyssal⚠ Exploited in the wildPoC availablePlex 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 f…
▾ Abyssal zone — Critical with a public exploit or in-the-wild use
impact 39.6 · likelihood 0.4 · exploitation 25
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 25.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.3%
Last analysed / modified upstream
1 GitHub repo
Federal remediation due Oct 23, 2026
0.3% → 1.8%
Added to the CISA catalog on Oct 20, 2026. Federal remediation due Oct 23, 2026. View catalog ↗
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.
media_server < 1.43.0.10861Upgrade past the affected range:
media_server 1.43.0.10861Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-96654Medium· 6.5Plex Media Server before 1.43.3.10861 does not correctly neutralize URL values included in 'searchOne,' allowing an attacker to call other plugins' functions and supply their own parameters.
CVE-2026-96652Medium· 4.3Plex Media Server before 1.43.3.10861 allows SSRF via '/player/timeline'
CVE-2026-96655Medium· 4.3Plex Media Server before 1.43.3.10861 allows an authenticated user to request arbitrary internal or external addresses via the '/video/:/transcode/universal' path parameter.
CVE-2026-96651Medium· 6.5Plex 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'
CVE-2025-69414High· 8.5Plex Media Server (PMS) through 1.42.2.10156 allows retrieval of a permanent access token via a /myplex/account call with a transient access token.
CVE-2025-69415High· 7.1In Plex Media Server (PMS) through 1.42.2.10156, ability to access /myplex/account with a device token is not properly aligned with whether the device is currently associated with an account.