{"items":[{"id":"NVI-00012064","kind":"vulnerability","title":"Backstage: Improper task state validation in Scaffolder backend","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-xvgh-hmx8-9xxf","CVE-2026-106500"],"plain_summary":"GitHub lists this reviewed advisory for @backstage/plugin-scaffolder-backend. 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-012f0066b862dd73b92e811e724c315b"],"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":"2026-10-07T17:59:03.000Z","value":"8.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-9a880d2ccff524c09c5ea98f62203ecc"},{"kind":"EPSS","as_of":"2026-11-05T12:03:04.000Z","value":"0.336%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.27157. Missing scores are unknown.","source_id":"sr-012f0066b862dd73b92e811e724c315b"}],"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-9a880d2ccff524c09c5ea98f62203ecc","url":"https://github.com/advisories/GHSA-xvgh-hmx8-9xxf","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-xvgh-hmx8-9xxf","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:46.232Z"},{"id":"sr-012f0066b862dd73b92e811e724c315b","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-2026-106500","publisher":"FIRST EPSS","observed_at":"2026-11-06T00:24:57.626Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-9a880d2ccff524c09c5ea98f62203ecc"],"technology":"@backstage/plugin-scaffolder-backend","known_exclusions":[],"conditions_summary":"### Impact\n\nAn authenticated user with permission to create and access Scaffolder tasks may, under specific timing and deployment conditions, affect files accessible to the Backstage backend. If backend application files are writable, the confidentiality, integrity, and availability of the backend may be compromised.\n\n### Patches\n\nPatched in `@backstage/plugin-scaffolder-backend` version `4.1.0`\n\n### Workarounds\n\n- Restrict Scaffolder task creation and task-read permissions to trusted users through the permission policy.\n- Limit who can register or modify templates and which Scaffolder actions may execute.\n- Run backend application files read-only outside a dedicated, least-privilege Scaffolder working directory.\n\n### References\n\n- Authorizing Scaffolder tasks, parameters, steps, and actions","public_affected_ranges":["< 4.1.0"]}],"null_published_at":"2026-11-07T07:07:42.512Z","source_updated_at":"2026-10-07T17:59:03.000Z","source_disclosed_at":"2026-10-07T17:59:02.000Z","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":"2026-11-01T00:58:46.232Z"},{"id":"NVI-00012064","kind":"vulnerability","title":"Backstage: Improper task state validation in Scaffolder backend","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-xvgh-hmx8-9xxf","CVE-2026-106500"],"plain_summary":"GitHub lists this reviewed advisory for @backstage/plugin-scaffolder-backend. 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-0df09a7d6e2d408b0170b0c5b44eea23"],"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":"2026-10-07T17:59:03.000Z","value":"8.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-9a880d2ccff524c09c5ea98f62203ecc"},{"kind":"EPSS","as_of":"2026-11-03T12:00:27.000Z","value":"0.336%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.27078. Missing scores are unknown.","source_id":"sr-0df09a7d6e2d408b0170b0c5b44eea23"}],"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-9a880d2ccff524c09c5ea98f62203ecc","url":"https://github.com/advisories/GHSA-xvgh-hmx8-9xxf","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-xvgh-hmx8-9xxf","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:46.232Z"},{"id":"sr-0df09a7d6e2d408b0170b0c5b44eea23","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-2026-106500","publisher":"FIRST EPSS","observed_at":"2026-11-03T17:44:07.774Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-9a880d2ccff524c09c5ea98f62203ecc"],"technology":"@backstage/plugin-scaffolder-backend","known_exclusions":[],"conditions_summary":"### Impact\n\nAn authenticated user with permission to create and access Scaffolder tasks may, under specific timing and deployment conditions, affect files accessible to the Backstage backend. If backend application files are writable, the confidentiality, integrity, and availability of the backend may be compromised.\n\n### Patches\n\nPatched in `@backstage/plugin-scaffolder-backend` version `4.1.0`\n\n### Workarounds\n\n- Restrict Scaffolder task creation and task-read permissions to trusted users through the permission policy.\n- Limit who can register or modify templates and which Scaffolder actions may execute.\n- Run backend application files read-only outside a dedicated, least-privilege Scaffolder working directory.\n\n### References\n\n- Authorizing Scaffolder tasks, parameters, steps, and actions","public_affected_ranges":["< 4.1.0"]}],"null_published_at":"2026-11-06T00:29:57.254Z","source_updated_at":"2026-10-07T17:59:03.000Z","source_disclosed_at":"2026-10-07T17:59:02.000Z","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":"2026-11-01T00:58:46.232Z"},{"id":"NVI-00012064","kind":"vulnerability","title":"Backstage: Improper task state validation in Scaffolder backend","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-xvgh-hmx8-9xxf","CVE-2026-106500"],"plain_summary":"GitHub lists this reviewed advisory for @backstage/plugin-scaffolder-backend. 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-9a880d2ccff524c09c5ea98f62203ecc"],"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":"2026-10-07T17:59:03.000Z","value":"8.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-9a880d2ccff524c09c5ea98f62203ecc"}],"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-9a880d2ccff524c09c5ea98f62203ecc","url":"https://github.com/advisories/GHSA-xvgh-hmx8-9xxf","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-xvgh-hmx8-9xxf","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:46.232Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-9a880d2ccff524c09c5ea98f62203ecc"],"technology":"@backstage/plugin-scaffolder-backend","known_exclusions":[],"conditions_summary":"### Impact\n\nAn authenticated user with permission to create and access Scaffolder tasks may, under specific timing and deployment conditions, affect files accessible to the Backstage backend. If backend application files are writable, the confidentiality, integrity, and availability of the backend may be compromised.\n\n### Patches\n\nPatched in `@backstage/plugin-scaffolder-backend` version `4.1.0`\n\n### Workarounds\n\n- Restrict Scaffolder task creation and task-read permissions to trusted users through the permission policy.\n- Limit who can register or modify templates and which Scaffolder actions may execute.\n- Run backend application files read-only outside a dedicated, least-privilege Scaffolder working directory.\n\n### References\n\n- Authorizing Scaffolder tasks, parameters, steps, and actions","public_affected_ranges":["< 4.1.0"]}],"null_published_at":"2026-11-01T01:03:56.627Z","source_updated_at":"2026-10-07T17:59:03.000Z","source_disclosed_at":"2026-10-07T17:59:02.000Z","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":"2026-11-01T00:58:46.232Z"}],"next_cursor":null,"snapshot_revision":"42594"}