CVE-2025-41090 Improper Access Control in CCN-CERT microCLAUDIA
Authenticated attackers can bypass tenant isolation to manage and delete assets in other organizations via direct API requests.
- 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-2025-41090?
CVE-2025-41090 is a high-severity missing authorization vulnerability in CCN-CERT microCLAUDIA, published on 28 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
microCLAUDIA in v3.2.0 and prior has an improper access control vulnerability.
This flaw allows an authenticated user to perform unauthorized actions on other organizations' systems by sending direct API requests. To do so, the attacker can use organization identifiers obtained through a compromised endpoint or deduced manually.
This vulnerability allows access between tenants, enabling an attacker to list and manage remote assets, uninstall agents, and even delete vaccines configurations.
Weakness: CWE-306
Which versions are affected by CVE-2025-41090?
How do I fix CVE-2025-41090?
No fix has been published for CVE-2025-41090 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-41090 being exploited?
There is no known exploitation of CVE-2025-41090 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-85qv-cf4w-f5mj.