CVE-2026-38924 Misconfiguration in Serena
The MCP server binds to all network interfaces by default, exposing the service to unauthorized network access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-38924?
CVE-2026-38924 is a low-severity vulnerability in Oraios AI Serena, published on 14 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In Oraios AI Serena before 1.0.0, the listen address of the MCP server in HTTP mode is 0.0.0.0. NOTE: the Supplier observed that 0.0.0.0 was a "potential security hazard" but the Serena documentation, at the time of the issue report proposing 127.0.0.1 instead of 0.0.0.0, recommended "use a sandboxed environment for running Serena."
Weakness: CWE-669
Which versions are affected by CVE-2026-38924?
How do I fix CVE-2026-38924?
No fix has been published for CVE-2026-38924 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-38924 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-38924 exists.
Sources
Also known as GHSA-gx4x-gc82-v87q, GHSA-m922-r24v-6wff.