CRITICAL 9.6 NVD
CVE-2026-61568
`@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
`@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.
References
- https://github.com/zereight/gitlab-mcp/commit/52207c6f5c0e7a39e9235d491225edbb562a0290
- https://github.com/zereight/gitlab-mcp/pull/555
- https://github.com/zereight/gitlab-mcp/releases/tag/v2.1.30
- https://github.com/zereight/gitlab-mcp/security/advisories/GHSA-vmp7-252j-cwp7
This critical severity vulnerability with a CVSS score of 9.6 was published on 2026-09-15 via NVD.
Risk Timeline
CVE Disclosed2026-09-15 · -1 days ago
Remediation Resources
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