{"items":[{"id":"NVI-00016060","kind":"vulnerability","title":"n8n: Denial of Service via ZIP decompression in webhook workflow","revision":2,"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-jqpw-qww5-cj4c","CVE-2026-54314"],"plain_summary":"GitHub lists this reviewed advisory for 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-6c448c54b44ccf53d874364189f31d31"],"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":"2026-07-20T13:39:58.000Z","value":"5.9 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-127cee0cdaaecc6d6d979cb373646bc2"},{"kind":"CVSS","as_of":"2026-10-26T11:10:00.157Z","value":"7.5 HIGH (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-6c448c54b44ccf53d874364189f31d31"},{"kind":"CVSS","as_of":"2026-10-26T11:10:00.157Z","value":"6.3 MEDIUM (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-6c448c54b44ccf53d874364189f31d31"}],"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-127cee0cdaaecc6d6d979cb373646bc2","url":"https://github.com/advisories/GHSA-jqpw-qww5-cj4c","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-jqpw-qww5-cj4c","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T02:49:06.528Z"},{"id":"sr-6c448c54b44ccf53d874364189f31d31","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54314","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-54314","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-08T01:48:12.360Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-127cee0cdaaecc6d6d979cb373646bc2"],"technology":"n8n","known_exclusions":[],"conditions_summary":"## Impact\nThe Compression node's Decompress operation expanded attacker-controlled archives into memory without enforcing limits on decompressed output size. An unauthenticated attacker could send a small compressed archive to a public webhook workflow using this node, causing the n8n process to terminate due to memory exhaustion and disrupting all workflows in the same instance. \n\n## Patches\nThe issue has been fixed in n8n version 2.24.0. Users should upgrade to this version or later to remediate the vulnerability. The fix introduces configurable limits on decompressed output size (`N8N_COMPRESSION_NODE_MAX_DECOMPRESSED_SIZE_BYTES`) and ZIP entry count (`N8N_COMPRESSION_NODE_MAX_ZIP_ENTRIES`).\n\n## Workarounds\nIf upgrading is not immediately possible, administrators should consider the following temporary mitigations:\n- Disable the Compression node by adding `n8n-nodes-base.compression` to the `NODES_EXCLUDE` environment variable.\n- Restrict public webhook workflows that accept archive file uploads to authenticated endpoints only.\n\nThese workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.","public_affected_ranges":["< 2.24.0"]}],"null_published_at":"2026-11-08T19:53:48.744Z","source_updated_at":"2026-07-20T13:39:58.000Z","source_disclosed_at":"2026-06-16T23:01:51.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-04T02:49:06.528Z"},{"id":"NVI-00016060","kind":"vulnerability","title":"n8n: Denial of Service via ZIP decompression in webhook workflow","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-jqpw-qww5-cj4c","CVE-2026-54314"],"plain_summary":"GitHub lists this reviewed advisory for 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-127cee0cdaaecc6d6d979cb373646bc2"],"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":"2026-07-20T13:39:58.000Z","value":"5.9 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-127cee0cdaaecc6d6d979cb373646bc2"}],"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-127cee0cdaaecc6d6d979cb373646bc2","url":"https://github.com/advisories/GHSA-jqpw-qww5-cj4c","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-jqpw-qww5-cj4c","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T02:49:06.528Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-127cee0cdaaecc6d6d979cb373646bc2"],"technology":"n8n","known_exclusions":[],"conditions_summary":"## Impact\nThe Compression node's Decompress operation expanded attacker-controlled archives into memory without enforcing limits on decompressed output size. An unauthenticated attacker could send a small compressed archive to a public webhook workflow using this node, causing the n8n process to terminate due to memory exhaustion and disrupting all workflows in the same instance. \n\n## Patches\nThe issue has been fixed in n8n version 2.24.0. Users should upgrade to this version or later to remediate the vulnerability. The fix introduces configurable limits on decompressed output size (`N8N_COMPRESSION_NODE_MAX_DECOMPRESSED_SIZE_BYTES`) and ZIP entry count (`N8N_COMPRESSION_NODE_MAX_ZIP_ENTRIES`).\n\n## Workarounds\nIf upgrading is not immediately possible, administrators should consider the following temporary mitigations:\n- Disable the Compression node by adding `n8n-nodes-base.compression` to the `NODES_EXCLUDE` environment variable.\n- Restrict public webhook workflows that accept archive file uploads to authenticated endpoints only.\n\nThese workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.","public_affected_ranges":["< 2.24.0"]}],"null_published_at":"2026-11-04T10:04:27.873Z","source_updated_at":"2026-07-20T13:39:58.000Z","source_disclosed_at":"2026-06-16T23:01:51.000Z","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":"2026-11-04T02:49:06.528Z"}],"next_cursor":null,"snapshot_revision":"42594"}