CVE-2026-61568 @zereight/mcp-gitlab - DNS Rebinding

@zereight/mcp-gitlab < 2.1.30 contains a dns rebinding vulnerability caused by lack of effective Host or Origin allowlist in the Streamable HTTP MCP endpoint, letting attackers route browser requests to local MCP listener with attacker-controlled headers, exploit requires victim to visit malicious web page.

CVSS base score 9.6 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.53% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
DNS Rebinding
Impact
Dns Rebinding
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Published
15 September 2026
Updated
15 October 2026
Weakness
CWE-350

Vendor fix

Update to version 2.1.30 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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