---
id: CVE-2026-61568
title: '`@zereight/mcp-gitlab` is a Model Context Protocol server for GitLab'
summary: >-
  `@zereight/mcp-gitlab` is a Model Context Protocol server for GitLab. Versions
  prior to 2.1.30 expose the Streamable HTTP MCP endpoint without an effective
  Host or Origin allowlist. A malicious web page can use DNS rebinding to route
  bro…
severity: critical
cvss: 9.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'
cwe:
  - CWE-350
vendor: zereight
product: '@zereight/mcp-gitlab'
affected:
  - '@zereight/mcp-gitlab < 2.1.30'
patched:
  - '@zereight/mcp-gitlab 2.1.30'
published: '2026-09-15'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T19:17:22.520'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-61568'
references:
  - url: >-
      https://github.com/zereight/gitlab-mcp/commit/52207c6f5c0e7a39e9235d491225edbb562a0290
    label: security-advisories@github.com
  - url: 'https://github.com/zereight/gitlab-mcp/pull/555'
    label: security-advisories@github.com
  - url: 'https://github.com/zereight/gitlab-mcp/releases/tag/v2.1.30'
    label: security-advisories@github.com
  - url: >-
      https://github.com/zereight/gitlab-mcp/security/advisories/GHSA-vmp7-252j-cwp7
    label: security-advisories@github.com
  - url: 'https://github.com/advisories/GHSA-vmp7-252j-cwp7'
tags:
  - nvd
  - ghsa
  - npm
  - cve.org
aliases:
  - GHSA-vmp7-252j-cwp7
ecosystem: npm
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-16T18:21:15.912542Z'
ingestedAt: '2026-09-15T21:44:50.635Z'
epss: 0.00322
epssPercentile: 0.25525
---

## Overview

`@zereight/mcp-gitlab` is a Model Context Protocol server for GitLab. Versions prior to 2.1.30 expose the Streamable HTTP MCP endpoint without an effective Host or Origin allowlist. A malicious web page can use DNS rebinding to route browser requests to a victim's local MCP listener while preserving an attacker-controlled `Host` and `Origin`. The server accepts those headers and reaches the MCP initialization path instead of rejecting the request at the HTTP boundary. Version 2.1.30 contains a patch.

## Remediation

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

## Package advisory (CVE-2026-61568)

Affected packages:

- `@zereight/mcp-gitlab < 2.1.30`

Patched in:

- `@zereight/mcp-gitlab 2.1.30`

Source: https://github.com/advisories/GHSA-vmp7-252j-cwp7