CVE-2025-34158 Information disclosure in Media Server

High 8.5 Published Updated

Attackers can retrieve server owner credentials and accessible server lists via specific API endpoints, potentially leading to account takeover.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-34158?

CVE-2025-34158 is a high-severity vulnerability in Plex Media Server, published on 21 Aug 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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).

Weakness: CWE-669

Which versions are affected by CVE-2025-34158?

How do I fix CVE-2025-34158?

No fix has been published for CVE-2025-34158 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-34158 being exploited?

There is no known exploitation of CVE-2025-34158 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as CVE-2025-57845, GHSA-7wp3-3rr7-485g.

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