{"items":[{"id":"NVI-00014187","kind":"vulnerability","title":"Axios form serializer maxDepth bypass via {} metatoken","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-hcpx-6fm6-wx23","CVE-2026-67321"],"plain_summary":"GitHub lists this reviewed advisory for axios, axios. 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-5729c1b06b0f395e463a4a8a18c50a4d"],"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-5729c1b06b0f395e463a4a8a18c50a4d","url":"https://github.com/advisories/GHSA-hcpx-6fm6-wx23","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-hcpx-6fm6-wx23","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T02:20:31.767Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5729c1b06b0f395e463a4a8a18c50a4d"],"technology":"axios","known_exclusions":[],"conditions_summary":"## Summary\n\nAxios versions in the fixed lines for GHSA-62hf-57xw-28j9 still contain an incomplete depth-limit bypass in `lib/helpers/toFormData.js`. When serializing an object with a top-level key ending in `{}`, axios calls `JSON.stringify()` on that value before the `formSerializer.maxDepth` guard can inspect the nested structure.\n\nAn attacker who can control object keys and nested values passed by an application into axios form or parameter serialization can trigger a raw `RangeError: Maximum call stack size exceeded`, causing a denial of service in the affected request path.\n\n## Impact\n\nThe impact is availability only. No confidentiality or integrity impact was confirmed.\n\nServer-side applications are the primary concern when they accept user-controlled input and pass it into axios as `data` or `params` for `multipart/form-data`, `application/x-www-form-urlencoded`, or default parameter serialization. Browser impact is limited to the page or request context unless the application builds a broader failure mode around the thrown exception.\n\nThe attack requires control over a top-level object key ending in `{}` and a deeply nested object value. The option `formSerializer.metaToken","public_affected_ranges":[">= 0.31.1, < 0.33.0"]},{"certainty":"source_listed","source_ids":["sr-5729c1b06b0f395e463a4a8a18c50a4d"],"technology":"axios","known_exclusions":[],"conditions_summary":"## Summary\n\nAxios versions in the fixed lines for GHSA-62hf-57xw-28j9 still contain an incomplete depth-limit bypass in `lib/helpers/toFormData.js`. When serializing an object with a top-level key ending in `{}`, axios calls `JSON.stringify()` on that value before the `formSerializer.maxDepth` guard can inspect the nested structure.\n\nAn attacker who can control object keys and nested values passed by an application into axios form or parameter serialization can trigger a raw `RangeError: Maximum call stack size exceeded`, causing a denial of service in the affected request path.\n\n## Impact\n\nThe impact is availability only. No confidentiality or integrity impact was confirmed.\n\nServer-side applications are the primary concern when they accept user-controlled input and pass it into axios as `data` or `params` for `multipart/form-data`, `application/x-www-form-urlencoded`, or default parameter serialization. Browser impact is limited to the page or request context unless the application builds a broader failure mode around the thrown exception.\n\nThe attack requires control over a top-level object key ending in `{}` and a deeply nested object value. The option `formSerializer.metaToken","public_affected_ranges":[">= 1.15.1, < 1.18.0"]}],"null_published_at":"2026-11-02T10:00:37.222Z","source_updated_at":"2026-09-08T17:29:34.000Z","source_disclosed_at":"2026-07-20T22:38:04.000Z","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":"2026-11-02T02:20:31.767Z"}],"next_cursor":null,"snapshot_revision":"42594"}