CVE-2026-52746

HIGH7.5

JSONata: Malicious inputs to "$toMillis" function can cause resource exhaustion

Published Jul 17, 2026

Modified 2 weeks ago

Details

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.

References

WEB

https://github.com/jsonata-js/jsonata/commit/80ba95d170f74e3f20f4f36b8b77d8c85cea7686

WEB

https://github.com/jsonata-js/jsonata/commit/d6ffc17cb16a8e53c222205bd274624e919cce0b

WEB

https://github.com/jsonata-js/jsonata/pull/782

WEB

https://github.com/jsonata-js/jsonata/pull/793

WEB

https://github.com/jsonata-js/jsonata/releases/tag/v1.8.9

WEB