{"items":[{"id":"NVI-00015105","kind":"vulnerability","title":"Flowise: Pyodide validator Unicode homoglyph bypass leads to RCE","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-52fh-8v99-63c2","CVE-2026-70470"],"plain_summary":"GitHub lists this reviewed advisory for flowise, flowise-components. 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-1633d34c10f48f662676055bc14ca506"],"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":"2026-10-24T15:10:00.190Z","value":"9.8 CRITICAL (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-5264855bc45f4ed3f84dd17fb4c33f80"},{"kind":"CVSS","as_of":"2026-10-24T15:10:00.190Z","value":"9.5 CRITICAL (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-5264855bc45f4ed3f84dd17fb4c33f80"},{"kind":"EPSS","as_of":"2026-11-03T12:00:27.000Z","value":"0.972%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.6201. Missing scores are unknown.","source_id":"sr-1633d34c10f48f662676055bc14ca506"}],"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-2279eda020f3f34d91f0d9cb72518eec","url":"https://github.com/advisories/GHSA-52fh-8v99-63c2","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-52fh-8v99-63c2","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:58:33.950Z"},{"id":"sr-5264855bc45f4ed3f84dd17fb4c33f80","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-70470","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-70470","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-08T15:07:54.921Z"},{"id":"sr-1633d34c10f48f662676055bc14ca506","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-2026-70470","publisher":"FIRST EPSS","observed_at":"2026-11-03T17:45:16.078Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2279eda020f3f34d91f0d9cb72518eec"],"technology":"flowise","known_exclusions":[],"conditions_summary":"### Summary\nThe validatePythonCodeForDataFrame blacklist in packages/components/src/pythonCodeValidator.ts can be bypassed with Unicode homoglyph identifiers, allowing arbitrary Python execution inside Pyodide and full OS command execution on the Flowise host via Pyodide's js module interop. This reopens the RCE paths patched as GHSA-3hjv-c53m-58jj (CSV Agent) and GHSA-v38x-c887-992f (Airtable Agent).\n\n### Details\npackages/components/src/pythonCodeValidator.ts gates every call to pyodide.runPythonAsync in packages/components/nodes/agents/CSVAgent/CSVAgent.ts (lines 147, 198) and packages/components/nodes/agents/AirtableAgent/AirtableAgent.ts (line 186). The gate is a regex blacklist:\n\n```ts\n{ pattern: /\\bimport\\b/g, ... },\n{ pattern: /\\b__class__\\b/g, ... },\n{ pattern: /\\b__subclasses__\\s*\\(/g, ... },\n{ pattern: /\\b__builtins__\\b/g, ... },\n{ pattern: /\\b__mro__\\b/g, ... },\n// ... about 30 similar rules\n```\n\nTwo design flaws combine into a bypass:\n\n1. JavaScript regex `\\b` is ASCII-only. Word boundaries are computed against the ASCII word class `[A-Za-z0-9_]`. A Unicode letter such as U+1D41A (mathematical bold small a) is treated as a non-word character, so `\\b__class__\\b` never ma","public_affected_ranges":["<= 3.1.2"]},{"certainty":"source_listed","source_ids":["sr-2279eda020f3f34d91f0d9cb72518eec"],"technology":"flowise-components","known_exclusions":[],"conditions_summary":"### Summary\nThe validatePythonCodeForDataFrame blacklist in packages/components/src/pythonCodeValidator.ts can be bypassed with Unicode homoglyph identifiers, allowing arbitrary Python execution inside Pyodide and full OS command execution on the Flowise host via Pyodide's js module interop. This reopens the RCE paths patched as GHSA-3hjv-c53m-58jj (CSV Agent) and GHSA-v38x-c887-992f (Airtable Agent).\n\n### Details\npackages/components/src/pythonCodeValidator.ts gates every call to pyodide.runPythonAsync in packages/components/nodes/agents/CSVAgent/CSVAgent.ts (lines 147, 198) and packages/components/nodes/agents/AirtableAgent/AirtableAgent.ts (line 186). The gate is a regex blacklist:\n\n```ts\n{ pattern: /\\bimport\\b/g, ... },\n{ pattern: /\\b__class__\\b/g, ... },\n{ pattern: /\\b__subclasses__\\s*\\(/g, ... },\n{ pattern: /\\b__builtins__\\b/g, ... },\n{ pattern: /\\b__mro__\\b/g, ... },\n// ... about 30 similar rules\n```\n\nTwo design flaws combine into a bypass:\n\n1. JavaScript regex `\\b` is ASCII-only. Word boundaries are computed against the ASCII word class `[A-Za-z0-9_]`. A Unicode letter such as U+1D41A (mathematical bold small a) is treated as a non-word character, so `\\b__class__\\b` never ma","public_affected_ranges":["<= 3.1.2"]}],"null_published_at":"2026-11-08T19:53:44.057Z","source_updated_at":"2026-08-04T17:31:10.000Z","source_disclosed_at":"2026-08-04T17:31:09.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-03T09:58:33.950Z"},{"id":"NVI-00015105","kind":"vulnerability","title":"Flowise: Pyodide validator Unicode homoglyph bypass leads to RCE","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-52fh-8v99-63c2","CVE-2026-70470"],"plain_summary":"GitHub lists this reviewed advisory for flowise, flowise-components. 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-1633d34c10f48f662676055bc14ca506"],"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":"EPSS","as_of":"2026-11-03T12:00:27.000Z","value":"0.972%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.6201. Missing scores are unknown.","source_id":"sr-1633d34c10f48f662676055bc14ca506"}],"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-2279eda020f3f34d91f0d9cb72518eec","url":"https://github.com/advisories/GHSA-52fh-8v99-63c2","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-52fh-8v99-63c2","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:58:33.950Z"},{"id":"sr-1633d34c10f48f662676055bc14ca506","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-2026-70470","publisher":"FIRST EPSS","observed_at":"2026-11-03T17:45:16.078Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2279eda020f3f34d91f0d9cb72518eec"],"technology":"flowise","known_exclusions":[],"conditions_summary":"### Summary\nThe validatePythonCodeForDataFrame blacklist in packages/components/src/pythonCodeValidator.ts can be bypassed with Unicode homoglyph identifiers, allowing arbitrary Python execution inside Pyodide and full OS command execution on the Flowise host via Pyodide's js module interop. This reopens the RCE paths patched as GHSA-3hjv-c53m-58jj (CSV Agent) and GHSA-v38x-c887-992f (Airtable Agent).\n\n### Details\npackages/components/src/pythonCodeValidator.ts gates every call to pyodide.runPythonAsync in packages/components/nodes/agents/CSVAgent/CSVAgent.ts (lines 147, 198) and packages/components/nodes/agents/AirtableAgent/AirtableAgent.ts (line 186). The gate is a regex blacklist:\n\n```ts\n{ pattern: /\\bimport\\b/g, ... },\n{ pattern: /\\b__class__\\b/g, ... },\n{ pattern: /\\b__subclasses__\\s*\\(/g, ... },\n{ pattern: /\\b__builtins__\\b/g, ... },\n{ pattern: /\\b__mro__\\b/g, ... },\n// ... about 30 similar rules\n```\n\nTwo design flaws combine into a bypass:\n\n1. JavaScript regex `\\b` is ASCII-only. Word boundaries are computed against the ASCII word class `[A-Za-z0-9_]`. A Unicode letter such as U+1D41A (mathematical bold small a) is treated as a non-word character, so `\\b__class__\\b` never ma","public_affected_ranges":["<= 3.1.2"]},{"certainty":"source_listed","source_ids":["sr-2279eda020f3f34d91f0d9cb72518eec"],"technology":"flowise-components","known_exclusions":[],"conditions_summary":"### Summary\nThe validatePythonCodeForDataFrame blacklist in packages/components/src/pythonCodeValidator.ts can be bypassed with Unicode homoglyph identifiers, allowing arbitrary Python execution inside Pyodide and full OS command execution on the Flowise host via Pyodide's js module interop. This reopens the RCE paths patched as GHSA-3hjv-c53m-58jj (CSV Agent) and GHSA-v38x-c887-992f (Airtable Agent).\n\n### Details\npackages/components/src/pythonCodeValidator.ts gates every call to pyodide.runPythonAsync in packages/components/nodes/agents/CSVAgent/CSVAgent.ts (lines 147, 198) and packages/components/nodes/agents/AirtableAgent/AirtableAgent.ts (line 186). The gate is a regex blacklist:\n\n```ts\n{ pattern: /\\bimport\\b/g, ... },\n{ pattern: /\\b__class__\\b/g, ... },\n{ pattern: /\\b__subclasses__\\s*\\(/g, ... },\n{ pattern: /\\b__builtins__\\b/g, ... },\n{ pattern: /\\b__mro__\\b/g, ... },\n// ... about 30 similar rules\n```\n\nTwo design flaws combine into a bypass:\n\n1. JavaScript regex `\\b` is ASCII-only. Word boundaries are computed against the ASCII word class `[A-Za-z0-9_]`. A Unicode letter such as U+1D41A (mathematical bold small a) is treated as a non-word character, so `\\b__class__\\b` never ma","public_affected_ranges":["<= 3.1.2"]}],"null_published_at":"2026-11-06T00:29:57.324Z","source_updated_at":"2026-08-04T17:31:10.000Z","source_disclosed_at":"2026-08-04T17:31:09.000Z","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":"2026-11-03T09:58:33.950Z"},{"id":"NVI-00015105","kind":"vulnerability","title":"Flowise: Pyodide validator Unicode homoglyph bypass leads to RCE","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-52fh-8v99-63c2","CVE-2026-70470"],"plain_summary":"GitHub lists this reviewed advisory for flowise, flowise-components. 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-2279eda020f3f34d91f0d9cb72518eec"],"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-2279eda020f3f34d91f0d9cb72518eec","url":"https://github.com/advisories/GHSA-52fh-8v99-63c2","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-52fh-8v99-63c2","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:58:33.950Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2279eda020f3f34d91f0d9cb72518eec"],"technology":"flowise","known_exclusions":[],"conditions_summary":"### Summary\nThe validatePythonCodeForDataFrame blacklist in packages/components/src/pythonCodeValidator.ts can be bypassed with Unicode homoglyph identifiers, allowing arbitrary Python execution inside Pyodide and full OS command execution on the Flowise host via Pyodide's js module interop. This reopens the RCE paths patched as GHSA-3hjv-c53m-58jj (CSV Agent) and GHSA-v38x-c887-992f (Airtable Agent).\n\n### Details\npackages/components/src/pythonCodeValidator.ts gates every call to pyodide.runPythonAsync in packages/components/nodes/agents/CSVAgent/CSVAgent.ts (lines 147, 198) and packages/components/nodes/agents/AirtableAgent/AirtableAgent.ts (line 186). The gate is a regex blacklist:\n\n```ts\n{ pattern: /\\bimport\\b/g, ... },\n{ pattern: /\\b__class__\\b/g, ... },\n{ pattern: /\\b__subclasses__\\s*\\(/g, ... },\n{ pattern: /\\b__builtins__\\b/g, ... },\n{ pattern: /\\b__mro__\\b/g, ... },\n// ... about 30 similar rules\n```\n\nTwo design flaws combine into a bypass:\n\n1. JavaScript regex `\\b` is ASCII-only. Word boundaries are computed against the ASCII word class `[A-Za-z0-9_]`. A Unicode letter such as U+1D41A (mathematical bold small a) is treated as a non-word character, so `\\b__class__\\b` never ma","public_affected_ranges":["<= 3.1.2"]},{"certainty":"source_listed","source_ids":["sr-2279eda020f3f34d91f0d9cb72518eec"],"technology":"flowise-components","known_exclusions":[],"conditions_summary":"### Summary\nThe validatePythonCodeForDataFrame blacklist in packages/components/src/pythonCodeValidator.ts can be bypassed with Unicode homoglyph identifiers, allowing arbitrary Python execution inside Pyodide and full OS command execution on the Flowise host via Pyodide's js module interop. This reopens the RCE paths patched as GHSA-3hjv-c53m-58jj (CSV Agent) and GHSA-v38x-c887-992f (Airtable Agent).\n\n### Details\npackages/components/src/pythonCodeValidator.ts gates every call to pyodide.runPythonAsync in packages/components/nodes/agents/CSVAgent/CSVAgent.ts (lines 147, 198) and packages/components/nodes/agents/AirtableAgent/AirtableAgent.ts (line 186). The gate is a regex blacklist:\n\n```ts\n{ pattern: /\\bimport\\b/g, ... },\n{ pattern: /\\b__class__\\b/g, ... },\n{ pattern: /\\b__subclasses__\\s*\\(/g, ... },\n{ pattern: /\\b__builtins__\\b/g, ... },\n{ pattern: /\\b__mro__\\b/g, ... },\n// ... about 30 similar rules\n```\n\nTwo design flaws combine into a bypass:\n\n1. JavaScript regex `\\b` is ASCII-only. Word boundaries are computed against the ASCII word class `[A-Za-z0-9_]`. A Unicode letter such as U+1D41A (mathematical bold small a) is treated as a non-word character, so `\\b__class__\\b` never ma","public_affected_ranges":["<= 3.1.2"]}],"null_published_at":"2026-11-03T10:03:26.549Z","source_updated_at":"2026-08-04T17:31:10.000Z","source_disclosed_at":"2026-08-04T17:31:09.000Z","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":"2026-11-03T09:58:33.950Z"}],"next_cursor":null,"snapshot_revision":"42594"}