---
id: CVE-2026-38924
title: >-
  In Oraios AI Serena before 1.0.0, the listen address of the MCP server in HTTP
  mode is 0.0.0.0
summary: >-
  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
  prop…
severity: low
cvss: 2.9
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-669
vendor: Oraios AI
product: Serena
affected:
  - Serena < 1.0.0
published: '2026-09-14'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T20:00:03.713'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-38924'
references:
  - url: >-
      https://dash.security/blog/cve-2026-38924-unauthenticated-rce-in-the-serena-mcp-server
    label: cve@mitre.org
  - url: >-
      https://github.com/oraios/serena/commit/a7af5c1f8a9ea27102eac9e72f64dd97dbfefff3
    label: cve@mitre.org
  - url: >-
      https://github.com/oraios/serena/commit/b00ae292ac2d49947506886f44eb1cad7b7d7cd1
    label: cve@mitre.org
  - url: 'https://github.com/oraios/serena/compare/v0.1.4...v1.0.0'
    label: cve@mitre.org
  - url: 'https://github.com/oraios/serena/security/advisories/GHSA-m922-r24v-6wff'
    label: cve@mitre.org
  - url: >-
      https://dash.security/blog/cve-2026-38924-unauthenticated-rce-in-the-serena-mcp-server
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00157
epssPercentile: 0.04136
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-14T16:32:11.855699Z'
ingestedAt: '2026-09-14T15:23:07.467Z'
---

## Overview

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."

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.