`@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.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-vmp7-252j-cwp7 @zereight/mcp-gitlab: DNS rebinding reaches local Streamable HTTP MCP transport
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 15 Sep 2026 21:15:00 +0000

Type Values Removed Values Added
Description `@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.
Title @zereight/mcp-gitlab: DNS rebinding reaches local Streamable HTTP MCP transport
Weaknesses CWE-350
References
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-09-15T20:56:11.723Z

Reserved: 2026-07-10T16:48:39.924Z

Link: CVE-2026-61568

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-15T21:16:41.570

Modified: 2026-09-15T21:16:41.570

Link: CVE-2026-61568

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses