CVE-2026-61560 @zereight/mcp-gitlab - Information Disclosure

@zereight/mcp-gitlab < 2.1.27 contains an information disclosure caused by unsanitized file_path parameter in upload_markdown tool with SSE=true, letting unauthenticated network attackers read arbitrary files and steal GitLab tokens, exploit requires default SSE transport mode enabled.

CVSS base score 9.8 /10

Critical

CISA KEV: Not listed
Public exploit: None known
Authentication: Not required
EPSS: 2.90% chance of exploitation in 30 days

View the NVD record ↗

Details

Type: Information Disclosure
Impact: Information Disclosure
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 15 September 2026
Updated: 15 October 2026
Weakness: CWE-22

Vendor fix

Upgrade to version 2.1.27 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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