{"items":[{"id":"NVI-00012053","kind":"vulnerability","title":"Backstage has improper input validation in TechDocs Markdown extension configuration","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-f7v3-xhm6-w245","CVE-2026-106557"],"plain_summary":"GitHub lists this reviewed advisory for @backstage/plugin-techdocs-node. 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-3496aea571fd4ee1cc3b18d4c895e0d2"],"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":"2026-10-07T16:22:59.000Z","value":"7.7 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-971b1d21719fafbd204f4a2a299151c1"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.375%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.31467. Missing scores are unknown.","source_id":"sr-3496aea571fd4ee1cc3b18d4c895e0d2"}],"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-971b1d21719fafbd204f4a2a299151c1","url":"https://github.com/advisories/GHSA-f7v3-xhm6-w245","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-f7v3-xhm6-w245","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:46.232Z"},{"id":"sr-3496aea571fd4ee1cc3b18d4c895e0d2","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-2026-106557","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.264Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-971b1d21719fafbd204f4a2a299151c1"],"technology":"@backstage/plugin-techdocs-node","known_exclusions":[],"conditions_summary":"### Impact\n\nAn authenticated user who can register or modify documentation sources may cause a TechDocs build to access resources outside the intended documentation boundary. Depending on deployment configuration, this may expose sensitive backend-host data or internal network resources.\n\n### Patches\n\nPatched in `@backstage/plugin-techdocs-node` version `1.15.4`.\n\nAdopters must also use `pymdown-extensions` version `10.21.3` or newer, normally through `mkdocs-techdocs-core` version `1.7.0` or newer. `@backstage/plugin-techdocs-node` does not control the Python dependencies used by the generator; with an older PyMdown release, snippets may remain vulnerable to file inclusion even after their configuration is sanitized.\n\n### Workarounds\n\n- Generate TechDocs only from trusted repositories with reviewed MkDocs configuration.\n- Use isolated build environments with restricted filesystem access and network egress.\n- Prefer externally generated TechDocs with appropriately sandboxed CI.","public_affected_ranges":["< 1.15.4"]}],"null_published_at":"2026-11-07T18:43:15.097Z","source_updated_at":"2026-10-07T16:22:59.000Z","source_disclosed_at":"2026-10-07T16:22:58.000Z","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-00012053","kind":"vulnerability","title":"Backstage has improper input validation in TechDocs Markdown extension configuration","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-f7v3-xhm6-w245","CVE-2026-106557"],"plain_summary":"GitHub lists this reviewed advisory for @backstage/plugin-techdocs-node. 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-2a96c581c90a6326161d591bf5c8dded"],"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":"2026-10-07T16:22:59.000Z","value":"7.7 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-971b1d21719fafbd204f4a2a299151c1"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.297%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.22461. Missing scores are unknown.","source_id":"sr-2a96c581c90a6326161d591bf5c8dded"}],"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-971b1d21719fafbd204f4a2a299151c1","url":"https://github.com/advisories/GHSA-f7v3-xhm6-w245","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-f7v3-xhm6-w245","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:46.232Z"},{"id":"sr-2a96c581c90a6326161d591bf5c8dded","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-2026-106557","publisher":"FIRST EPSS","observed_at":"2026-11-01T01:39:43.064Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-971b1d21719fafbd204f4a2a299151c1"],"technology":"@backstage/plugin-techdocs-node","known_exclusions":[],"conditions_summary":"### Impact\n\nAn authenticated user who can register or modify documentation sources may cause a TechDocs build to access resources outside the intended documentation boundary. Depending on deployment configuration, this may expose sensitive backend-host data or internal network resources.\n\n### Patches\n\nPatched in `@backstage/plugin-techdocs-node` version `1.15.4`.\n\nAdopters must also use `pymdown-extensions` version `10.21.3` or newer, normally through `mkdocs-techdocs-core` version `1.7.0` or newer. `@backstage/plugin-techdocs-node` does not control the Python dependencies used by the generator; with an older PyMdown release, snippets may remain vulnerable to file inclusion even after their configuration is sanitized.\n\n### Workarounds\n\n- Generate TechDocs only from trusted repositories with reviewed MkDocs configuration.\n- Use isolated build environments with restricted filesystem access and network egress.\n- Prefer externally generated TechDocs with appropriately sandboxed CI.","public_affected_ranges":["< 1.15.4"]}],"null_published_at":"2026-11-01T14:34:14.106Z","source_updated_at":"2026-10-07T16:22:59.000Z","source_disclosed_at":"2026-10-07T16:22:58.000Z","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-00012053","kind":"vulnerability","title":"Backstage has improper input validation in TechDocs Markdown extension configuration","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-f7v3-xhm6-w245","CVE-2026-106557"],"plain_summary":"GitHub lists this reviewed advisory for @backstage/plugin-techdocs-node. 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-971b1d21719fafbd204f4a2a299151c1"],"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":"2026-10-07T16:22:59.000Z","value":"7.7 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-971b1d21719fafbd204f4a2a299151c1"}],"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-971b1d21719fafbd204f4a2a299151c1","url":"https://github.com/advisories/GHSA-f7v3-xhm6-w245","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-f7v3-xhm6-w245","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:46.232Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-971b1d21719fafbd204f4a2a299151c1"],"technology":"@backstage/plugin-techdocs-node","known_exclusions":[],"conditions_summary":"### Impact\n\nAn authenticated user who can register or modify documentation sources may cause a TechDocs build to access resources outside the intended documentation boundary. Depending on deployment configuration, this may expose sensitive backend-host data or internal network resources.\n\n### Patches\n\nPatched in `@backstage/plugin-techdocs-node` version `1.15.4`.\n\nAdopters must also use `pymdown-extensions` version `10.21.3` or newer, normally through `mkdocs-techdocs-core` version `1.7.0` or newer. `@backstage/plugin-techdocs-node` does not control the Python dependencies used by the generator; with an older PyMdown release, snippets may remain vulnerable to file inclusion even after their configuration is sanitized.\n\n### Workarounds\n\n- Generate TechDocs only from trusted repositories with reviewed MkDocs configuration.\n- Use isolated build environments with restricted filesystem access and network egress.\n- Prefer externally generated TechDocs with appropriately sandboxed CI.","public_affected_ranges":["< 1.15.4"]}],"null_published_at":"2026-11-01T01:03:56.626Z","source_updated_at":"2026-10-07T16:22:59.000Z","source_disclosed_at":"2026-10-07T16:22:58.000Z","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"}