CVE-2025-46387 Auth bypass in MediaBrowser
Attackers can bypass authorization controls in Emby Media Server by manipulating user-controlled keys, potentially accessing or modifying unauthorized media data.
- 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-2025-46387?
CVE-2025-46387 is a high-severity authentication bypass vulnerability in Emby MediaBrowser, published on 6 Aug 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
CWE-639 Authorization Bypass Through User-Controlled Key
Weakness: CWE-639
Which versions are affected by CVE-2025-46387?
How do I fix CVE-2025-46387?
No fix has been published for CVE-2025-46387 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2025-46387 being exploited?
There is no known exploitation of CVE-2025-46387 in the wild and no public exploit code.
Sources
Also known as GHSA-mx8c-7rh4-qfj2.