{"items":[{"id":"NVI-00016184","kind":"vulnerability","title":"n8n: Cross-Tenant Module-Cache Poisoning in the JS Task Runner","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-9cmh-xcqm-5hqr"],"plain_summary":"GitHub lists this reviewed advisory for n8n, n8n, n8n. 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-3ee284b0708476d674d591bdb9bf4380"],"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-3ee284b0708476d674d591bdb9bf4380","url":"https://github.com/advisories/GHSA-9cmh-xcqm-5hqr","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-9cmh-xcqm-5hqr","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T17:42:43.803Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-3ee284b0708476d674d591bdb9bf4380"],"technology":"n8n","known_exclusions":[],"conditions_summary":"## Impact\n\nn8n's JavaScript task runner shared one module cache across all users' Code-node executions, so a user able to run a Code node could poison a cached module and alter other users' Code-node executions on the same runner, affecting their confidentiality, integrity, or availability.\n\nThis is a cross-user isolation break within a single n8n instance. It does not constitute a sandbox escape or remote code execution. All multi-user n8n instances running the JS task runner with built-in or external modules enabled are affected.\n\n## Patches\n\nThe issue has been fixed in n8n versions 1.123.67, 2.31.5, and 2.32.1. Users should upgrade to one of these versions or later to remediate the vulnerability.\n\n## Workarounds\n\nIf upgrading is not immediately possible, administrators should consider the following temporary mitigations:\n- Restrict n8n instance access to fully trusted users only.\n- Disable built-in and external module access in Code nodes by unsetting `NODE_FUNCTION_ALLOW_BUILTIN` and `NODE_FUNCTION_ALLOW_EXTERNAL`, which removes the poisonable module surface.\n- Use the external runner mode with a dedicated runner per user or project if your deployment supports it.\n\nThese workar","public_affected_ranges":["< 1.123.67"]},{"certainty":"source_listed","source_ids":["sr-3ee284b0708476d674d591bdb9bf4380"],"technology":"n8n","known_exclusions":[],"conditions_summary":"## Impact\n\nn8n's JavaScript task runner shared one module cache across all users' Code-node executions, so a user able to run a Code node could poison a cached module and alter other users' Code-node executions on the same runner, affecting their confidentiality, integrity, or availability.\n\nThis is a cross-user isolation break within a single n8n instance. It does not constitute a sandbox escape or remote code execution. All multi-user n8n instances running the JS task runner with built-in or external modules enabled are affected.\n\n## Patches\n\nThe issue has been fixed in n8n versions 1.123.67, 2.31.5, and 2.32.1. Users should upgrade to one of these versions or later to remediate the vulnerability.\n\n## Workarounds\n\nIf upgrading is not immediately possible, administrators should consider the following temporary mitigations:\n- Restrict n8n instance access to fully trusted users only.\n- Disable built-in and external module access in Code nodes by unsetting `NODE_FUNCTION_ALLOW_BUILTIN` and `NODE_FUNCTION_ALLOW_EXTERNAL`, which removes the poisonable module surface.\n- Use the external runner mode with a dedicated runner per user or project if your deployment supports it.\n\nThese workar","public_affected_ranges":[">= 2.32.0, < 2.32.1"]},{"certainty":"source_listed","source_ids":["sr-3ee284b0708476d674d591bdb9bf4380"],"technology":"n8n","known_exclusions":[],"conditions_summary":"## Impact\n\nn8n's JavaScript task runner shared one module cache across all users' Code-node executions, so a user able to run a Code node could poison a cached module and alter other users' Code-node executions on the same runner, affecting their confidentiality, integrity, or availability.\n\nThis is a cross-user isolation break within a single n8n instance. It does not constitute a sandbox escape or remote code execution. All multi-user n8n instances running the JS task runner with built-in or external modules enabled are affected.\n\n## Patches\n\nThe issue has been fixed in n8n versions 1.123.67, 2.31.5, and 2.32.1. Users should upgrade to one of these versions or later to remediate the vulnerability.\n\n## Workarounds\n\nIf upgrading is not immediately possible, administrators should consider the following temporary mitigations:\n- Restrict n8n instance access to fully trusted users only.\n- Disable built-in and external module access in Code nodes by unsetting `NODE_FUNCTION_ALLOW_BUILTIN` and `NODE_FUNCTION_ALLOW_EXTERNAL`, which removes the poisonable module surface.\n- Use the external runner mode with a dedicated runner per user or project if your deployment supports it.\n\nThese workar","public_affected_ranges":[">= 2.0.0-rc.0, < 2.31.5"]}],"null_published_at":"2026-11-04T10:04:27.903Z","source_updated_at":"2026-07-22T23:18:41.000Z","source_disclosed_at":"2026-07-22T23:18:39.000Z","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":"2026-11-03T17:42:43.803Z"}],"next_cursor":null,"snapshot_revision":"42594"}