CVE-2026-61462
mcp-gitlab contains a path traversal vulnerability in the job_id parameter of build/index.js that allows attackers to redirect GitLab API requests to arbitrary endpoints. Attackers can supply crafted job_id values like ../../../user to escape the intended path prefix and access arbitrary GitLab API resources using the operator's personal access token.
Weakness
mcp-gitlab contains a path traversal vulnerability in the job_id parameter of build/index.js that allows attackers to redirect GitLab API requests to arbitrary endpoints. Attackers can supply crafted job_id values like ../../../user to escape the intended path prefix and access arbitrary GitLab API resources using the operator's personal access token.
References
- https://github.com/zereight/gitlab-mcp
- https://github.com/zereight/gitlab-mcp/commit/e2a81a047ab8750fa5bfa1763b5d85e5616f3994
- https://github.com/zereight/gitlab-mcp/issues/587
- https://www.vulncheck.com/advisories/mcp-gitlab-path-traversal-via-job-id-parameter
- https://github.com/zereight/gitlab-mcp/issues/587
Find the bug before an attacker does.
Sign in with GitHub and run your first audit in under a minute. The free plan needs no credit card.