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No exploitation reportedFix available

CVE-2026-61568

No exploitation reported by the sources we read.

  • Published2026-09-15
  • Fixed in2.1.30
  • WeaknessCWE-350

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2026-09-1521:16CVE publishedNVD

Versions per branch

OSV
@zereight/mcp-gitlab
BranchAffectedFixed in
2.1< 2.1.302.1.30

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • zereight gitlab-mcp
    Affected
    • = < 2.1.30no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-09-15

Fix

  1. Update @zereight/mcp-gitlab to 2.1.30

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionnone2026-09-16
  • CNACVSS 3.19.6known since 2026-10-23
  • CNAweakness (CWE)CWE-350known since 2026-10-23
  • FIRST EPSSEPSS score0.5 %2026-11-12
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryCRITICAL2026-09-15

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Published
2026-09-15
Last Modified
2026-09-30
NVD status
Deferred
GitHub Advisory
GHSA-vmp7-252j-cwp7

Frequently asked questions

What is 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 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.

Is CVE-2026-61568 actively exploited?

Active exploitation of CVE-2026-61568 has not been confirmed. Its EPSS score was 0.5% on 2026-11-12, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-61568?

CVE-2026-61568 has a CVSS v3 base score of 9.6 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

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