CVE-2026-61560
@zereight/mcp-gitlab: Unauthenticated arbitrary file read via `upload_markdown` enables PAT exfiltration and full account takeover
Kaynağa göre önem derecesi
Trivy'nin kendi etiketi CRITICAL. Kritik diyenler: GHSA.
Açıklama
`@zereight/mcp-gitlab` is a Model Context Protocol server for GitLab. Prior to version 2.1.27, the SSE transport mode (`SSE=true`) exposes all MCP tools without any authentication. The `upload_markdown` tool reads arbitrary files from the server's local filesystem via an unsanitized `file_path` parameter and uploads them to a GitLab project. Combined, any unauthenticated network-reachable attacker can read `/proc/self/environ` to steal the server's `GITLAB_PERSONAL_ACCESS_TOKEN` and achieve full GitLab account takeover. This is the default configuration for Docker deployments. Version 2.1.27 contains a patch.
Etkilenen paketler ve düzeltilmiş sürümler
| Kaynak | Paket | Düzeltildiği sürüm |
|---|---|---|
| npm::GitHub Security Advisory npm | @zereight/mcp-gitlab | 2.1.27 |
Referanslar
- https://github.com/zereight/gitlab-mcp
- https://github.com/zereight/gitlab-mcp/commit/e436ee4ad067b64584ec9312c9e9c9a2641c1976
- https://github.com/zereight/gitlab-mcp/pull/482
- https://github.com/zereight/gitlab-mcp/pull/554
- https://github.com/zereight/gitlab-mcp/pull/622
- https://github.com/zereight/gitlab-mcp/releases/tag/v2.1.27
- https://github.com/zereight/gitlab-mcp/security/advisories/GHSA-cv3r-c5h8-f4g5
- https://nvd.nist.gov/vuln/detail/CVE-2026-61560