CVE-2025-56405 Missing authorization in n/a
Unauthorized attackers can control the target's MCP service via SSE protocol due to missing authentication, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-56405?
CVE-2025-56405 is a high-severity missing authorization vulnerability in n/a, published on 10 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in litmusautomation litmus-mcp-server thru 0.0.1 allowing unauthorized attackers to control the target's MCP service through the SSE protocol.
Which versions are affected by CVE-2025-56405?
It affects 1 product.
Products include Litmus Mcp Server.
How do I fix CVE-2025-56405?
No fix has been published for CVE-2025-56405 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-2025-56405 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-56405 exists.
Sources
Also known as GHSA-78v7-qjp3-95fq.