{"items":[{"id":"NVI-00018320","kind":"vulnerability","title":"@yoda.digital/gitlab-mcp-server's SSE transport has no authentication and wildcard CORS, exposing all 86 GitLab tools","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-8jr5-6gvj-rfpf","CVE-2026-44895"],"plain_summary":"GitHub lists this reviewed advisory for @yoda.digital/gitlab-mcp-server. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-102cfd83e8854b74750a83980bb697a6"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-102cfd83e8854b74750a83980bb697a6","url":"https://github.com/advisories/GHSA-8jr5-6gvj-rfpf","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-8jr5-6gvj-rfpf","publisher":"GitHub Advisory Database","observed_at":"2026-11-07T00:50:36.189Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-102cfd83e8854b74750a83980bb697a6"],"technology":"@yoda.digital/gitlab-mcp-server","known_exclusions":[],"conditions_summary":"## SSE Transport Has No Authentication and Wildcard CORS, Exposing All 86 GitLab Tools Including Destructive Operations\n\nA review of `mcp-gitlab-server` at commit `80a7b4cf3fba6b55389c0ef491a48190f7c8996a` uncovered that the SSE HTTP transport — advertised in the README and comparison table as a differentiating feature — runs with no authentication and wildcard CORS on every endpoint. The maintainers' own roadmap confirms auth is a known gap.\n\nWhen `USE_SSE=true`, the HTTP server in `src/transport.ts` sets:\n\n```typescript\nres.setHeader('Access-Control-Allow-Origin', '*');\nres.setHeader('Access-Control-Allow-Methods', 'GET, POST');\nres.setHeader('Access-Control-Allow-Headers', 'Content-Type');\n```\n\nThe `httpServer.listen(port)` call at line 97 passes no host argument — Node.js defaults to `0.0.0.0`, binding on all interfaces. Two endpoints are exposed with no credential check:\n\n- `GET /sse` — opens an SSE connection, returns a session endpoint URL\n- `POST /messages?sessionId=` — sends MCP messages to the server using the loaded `GITLAB_PERSONAL_ACCESS_TOKEN`\n\nAny caller who can reach the port — LAN, cloud instance, or via the browser-tab vector the wildcard CORS enables — gets f","public_affected_ranges":["< 0.6.0"]}],"null_published_at":"2026-11-07T07:07:39.811Z","source_updated_at":"2026-06-08T23:34:56.000Z","source_disclosed_at":"2026-05-09T00:10:28.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-07T00:50:36.189Z"}],"next_cursor":null,"snapshot_revision":"42594"}