Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-96656— Plex Media Server arbitrary file write

Quick assessment

Affected
Plex Media Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 si

CVSS 7.2 · High
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-96656

Vulnerability Information

Shenlong is analyzing...

Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Plex Media Server arbitrary file write
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Plex Media Server 0 ~ 1.43.3.10861 -

II. Public POCs for CVE-2026-96656

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-96656

请登录查看更多情报信息。

Security Blog Posts for CVE-2026-96656 (1)

Other References for CVE-2026-96656 (2)

Same Patch Batch · Plex · 2026-09-23 · 5 CVEs total

CVE-2026-96654 6.5 MEDIUM Plex Media Server URL injection
CVE-2026-96651 6.5 MEDIUM Plex Media Server path traversal
CVE-2026-96655 4.3 MEDIUM Plex Media Server arbitrary-host SSRF
CVE-2026-96652 4.3 MEDIUM Plex Media Server SSRF

IV. Related Vulnerabilities

Same product: Media Server
Same vendor: Plex
Same weakness: CWE-73

V. Comments for CVE-2026-96656

No comments yet

Leave a comment