{"items":[{"id":"NVI-00010710","kind":"vulnerability","title":"NetLicensing-MCP: Unauthenticated Use of Server-Side NetLicensing API Key in HTTP Mode","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-x9vc-9ffq-p3gj","CVE-2026-54446"],"plain_summary":"GitHub lists this reviewed advisory for netlicensing-mcp. 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-59560a58989d39012980502724fec196"],"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":[{"kind":"CVSS","as_of":"2026-10-22T08:27:46.000Z","value":"8.1 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-bb1b86967a049b87eac7a85fe7b15b5c"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.619%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.49677. Missing scores are unknown.","source_id":"sr-59560a58989d39012980502724fec196"}],"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-bb1b86967a049b87eac7a85fe7b15b5c","url":"https://github.com/advisories/GHSA-x9vc-9ffq-p3gj","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-x9vc-9ffq-p3gj","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:07:30.906Z"},{"id":"sr-59560a58989d39012980502724fec196","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-54446","publisher":"FIRST EPSS","observed_at":"2026-10-31T23:13:27.697Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-bb1b86967a049b87eac7a85fe7b15b5c"],"technology":"netlicensing-mcp","known_exclusions":[],"conditions_summary":"## Unauthenticated Use of Server-Side NetLicensing API Key in HTTP Mode\n\n### Summary\n\nWhen `netlicensing-mcp` is run in HTTP transport mode, the `ApiKeyMiddleware` fails to enforce authentication: requests that carry no client API key are unconditionally forwarded to the next handler (`server.py:1427`). The downstream HTTP client then falls back to the server operator's `NETLICENSING_API_KEY` environment variable (`client.py:30`) and uses it to authenticate every upstream call to the NetLicensing REST API. An unauthenticated network attacker can therefore invoke any MCP tool — including product listing, license creation/modification, and destructive delete operations — entirely under the operator's identity and account quota. CVSS 3.1 Base Score: **8.1 (High)**.\n\n### Details\n\nThe HTTP transport is started in `src/netlicensing_mcp/server.py` around line 1430 via `mcp.streamable_http_app()`, and `ApiKeyMiddleware` is registered immediately after (line 1431). The middleware implementation (lines 1412–1427) attempts to extract a per-request API key from either the `x-netlicensing-api-key` header or the `?apikey=` query parameter. However, if neither source provides a key, the middlewar","public_affected_ranges":["<= 0.1.5"]}],"null_published_at":"2026-11-01T07:29:08.039Z","source_updated_at":"2026-10-22T08:27:46.000Z","source_disclosed_at":"2026-07-14T20:47:19.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T22:07:30.906Z"},{"id":"NVI-00010710","kind":"vulnerability","title":"NetLicensing-MCP: Unauthenticated Use of Server-Side NetLicensing API Key in HTTP Mode","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-x9vc-9ffq-p3gj","CVE-2026-54446"],"plain_summary":"GitHub lists this reviewed advisory for netlicensing-mcp. 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-bb1b86967a049b87eac7a85fe7b15b5c"],"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":[{"kind":"CVSS","as_of":"2026-10-22T08:27:46.000Z","value":"8.1 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-bb1b86967a049b87eac7a85fe7b15b5c"}],"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-bb1b86967a049b87eac7a85fe7b15b5c","url":"https://github.com/advisories/GHSA-x9vc-9ffq-p3gj","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-x9vc-9ffq-p3gj","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:07:30.906Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-bb1b86967a049b87eac7a85fe7b15b5c"],"technology":"netlicensing-mcp","known_exclusions":[],"conditions_summary":"## Unauthenticated Use of Server-Side NetLicensing API Key in HTTP Mode\n\n### Summary\n\nWhen `netlicensing-mcp` is run in HTTP transport mode, the `ApiKeyMiddleware` fails to enforce authentication: requests that carry no client API key are unconditionally forwarded to the next handler (`server.py:1427`). The downstream HTTP client then falls back to the server operator's `NETLICENSING_API_KEY` environment variable (`client.py:30`) and uses it to authenticate every upstream call to the NetLicensing REST API. An unauthenticated network attacker can therefore invoke any MCP tool — including product listing, license creation/modification, and destructive delete operations — entirely under the operator's identity and account quota. CVSS 3.1 Base Score: **8.1 (High)**.\n\n### Details\n\nThe HTTP transport is started in `src/netlicensing_mcp/server.py` around line 1430 via `mcp.streamable_http_app()`, and `ApiKeyMiddleware` is registered immediately after (line 1431). The middleware implementation (lines 1412–1427) attempts to extract a per-request API key from either the `x-netlicensing-api-key` header or the `?apikey=` query parameter. However, if neither source provides a key, the middlewar","public_affected_ranges":["<= 0.1.5"]}],"null_published_at":"2026-10-31T22:27:12.377Z","source_updated_at":"2026-10-22T08:27:46.000Z","source_disclosed_at":"2026-07-14T20:47:19.000Z","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":"2026-10-31T22:07:30.906Z"}],"next_cursor":null,"snapshot_revision":"42594"}