CVE-2026-52746

JSONata is a JSON query and transformation language. Prior to 2.2.0, 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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/jsonata-js/jsonata/commit/80ba95d170f74e3f20f4f36b8b77d8c85cea7686
https://github.com/jsonata-js/jsonata/commit/d6ffc17cb16a8e53c222205bd274624e919cce0b
https://github.com/jsonata-js/jsonata/pull/782
https://github.com/jsonata-js/jsonata/pull/793
https://github.com/jsonata-js/jsonata/releases/tag/v2.2.0
https://github.com/jsonata-js/jsonata/security/advisories/GHSA-86vw-mfpg-wwv9

Configurations

No configuration.

History

17 Jul 2026, 19:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-17 19:17

Updated : 2026-07-17 20:17

NVD link : CVE-2026-52746

Mitre link : CVE-2026-52746

CVE.ORG link : CVE-2026-52746

JSON object : View

Products Affected

No product.

CWE

CWE-1333

Inefficient Regular Expression Complexity

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