Vulnerability Description
Plex Media Server (PMS) 1.41.7.x through 1.42.0.x before 1.42.1 is affected by incorrect resource transfer between spheres because /myplex/account provides the credentials of the server owner (and a /api/resources call reveals other servers accessible by that server owner).
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://forums.plex.tv/t/plex-media-server-security-update/928341
- https://github.com/lufinkey/vulnerability-research/blob/main/CVE-2025-34158/READ
- https://github.com/lufinkey/vulnerability-research/tree/main/CVE-2025-34158
- https://www.bleepingcomputer.com/news/security/plex-warns-users-to-patch-securit
- https://www.plex.tv/media-server-downloads/
- https://www.runzero.com/blog/plex/
- https://www.tenable.com/plugins/nessus/250294
- https://www.vulncheck.com/advisories/plex-media-server-unspecified
FAQ
What is CVE-2025-34158?
CVE-2025-34158 is a vulnerability with a CVSS score of 8.5 (HIGH). Plex Media Server (PMS) 1.41.7.x through 1.42.0.x before 1.42.1 is affected by incorrect resource transfer between spheres because /myplex/account provides the credentials of the server owner (and a /...
How severe is CVE-2025-34158?
CVE-2025-34158 has been rated HIGH with a CVSS base score of 8.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-34158?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.