Is CVE-2026-61568 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-61568?

CVE-2026-61568 has a CVSS v3 severity of CRITICAL (9.6).

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CVE-2026-61568

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.