CVE-2026-52746

Published: Jul 17, 2026Modified: Aug 3, 2026

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: security-advisories@github.com (Secondary)

Description

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.

Affected (1)

Products: Jsonata: Jsonata

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Jsonata Jsonata	version < 2.2.0

Related CWEs

Inefficient Regular Expression Complexity

The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.

References (7)

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

Source: security-advisories@github.com

Patch

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

Source: security-advisories@github.com

Patch

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

Source: security-advisories@github.com

Issue TrackingPatch

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

Source: security-advisories@github.com

Issue TrackingPatch

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

Source: security-advisories@github.com

https://github.com/jsonata-js/jsonata/releases/tag/v2.2.0

Source: security-advisories@github.com

ProductRelease Notes

https://github.com/jsonata-js/jsonata/security/advisories/GHSA-86vw-mfpg-wwv9

Source: security-advisories@github.com

PatchVendor Advisory

Timeline

No history available yet.