Vulnerability · Published Sep 14, 2026 · Assigned by mitre
CVE-2026-38924
Low 2.9
In plain English
A low-severity security flaw in Serena from Oraios AI. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).
Severity (CVSS 3.1)2.9Low
Exploit odds (30 days)0.2%top 95.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
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."
Affected products (as reported)
Weakness: CWE-669 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
References
- https://github.com/oraios/serena/commit/b00ae292ac2d49947506886f44eb1cad7b7d7cd1
- https://github.com/oraios/serena/security/advisories/GHSA-m922-r24v-6wff
- https://dash.security/blog/cve-2026-38924-unauthenticated-rce-in-the-serena-mcp-server
- https://github.com/oraios/serena/compare/v0.1.4...v1.0.0
- https://github.com/oraios/serena/commit/a7af5c1f8a9ea27102eac9e72f64dd97dbfefff3