CVE-2026-61559 @zereight/mcp-gitlab - Information Disclosure

@zereight/mcp-gitlab < 2.1.27 contains an information disclosure caused by lack of hostname restriction on X-GitLab-API-URL header, letting attackers receiving victim's Private-Token via attacker-controlled API URL, exploit requires network access to send crafted requests.

CVSS base score 9.6 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.43% 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:L/UI:N/S:C/C:H/I:H/A:N
Published
15 September 2026
Updated
15 October 2026
Weakness
CWE-918

Vendor fix

Update 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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