SECURELYN

CVE-2026-96655

Plex 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.

Scores

5.3
CVSS 5.3 out of 10, medium severity.
0.2%
EPSS 0.2% chance of exploitation in the next 30 days.

The facts

Published
23 September 2026
Last changed
20 October 2026
NVD status
Modified
Severity
Medium, CVSS 5.3 out of 10 (version 4.0)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R…
Weakness
Affects
  • plex media server
Known exploited
Yes. CISA added it to the Known Exploited Vulnerabilities catalogue on 20 October 2026.
EPSS
0.2% chance of exploitation activity in the next 30 days (percentile 12).

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References