CVE-2026-52746

JSONata is a JSON query and transformation language. Prior to 2.2.0 and 1.8.9, malicious non-matching inputs to the $toMillis function can cause superlinear backtracking in the ISO-8601 validation regex, leading to denial of service in applications that evaluate user-provided JSONata expressions. This issue is fixed in version 2.2.0 and 1.8.9.

• CWE-1333

• https://github.com/jsonata-js/jsonata/commit/80ba95d170f74e3f20f4f36b8b77d8c85cea7686Patch
• https://github.com/jsonata-js/jsonata/commit/d6ffc17cb16a8e53c222205bd274624e919cce0bPatch
• https://github.com/jsonata-js/jsonata/pull/782Issue Tracking, Patch
• https://github.com/jsonata-js/jsonata/pull/793Issue Tracking, Patch
• https://github.com/jsonata-js/jsonata/releases/tag/v1.8.9
• https://github.com/jsonata-js/jsonata/releases/tag/v2.2.0Product, Release Notes
• https://github.com/jsonata-js/jsonata/security/advisories/GHSA-86vw-mfpg-wwv9Patch, Vendor Advisory

Published

Jul 17, 2026

Last Modified

Aug 3, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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