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.

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	Patch
https://github.com/jsonata-js/jsonata/commit/d6ffc17cb16a8e53c222205bd274624e919cce0b	Patch
https://github.com/jsonata-js/jsonata/pull/782	Issue Tracking Patch
https://github.com/jsonata-js/jsonata/pull/793	Issue Tracking Patch
https://github.com/jsonata-js/jsonata/releases/tag/v1.8.9
https://github.com/jsonata-js/jsonata/releases/tag/v2.2.0	Product Release Notes
https://github.com/jsonata-js/jsonata/security/advisories/GHSA-86vw-mfpg-wwv9	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:jsonata:jsonata:*:*:*:*:*:*:*:*

History

24 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) JSONata es un lenguaje de consulta y transformación de JSON. Antes de 2.2.0, entradas maliciosas no coincidentes a la función $toMillis pueden causar un retroceso superlineal en la expresión regular de validación ISO-8601, lo que lleva a una denegación de servicio en aplicaciones que evalúan expresiones JSONata proporcionadas por el usuario. Este problema se ha corregido en la versión 2.2.0.

Information

Published : 2026-07-17 19:17

Updated : 2026-10-24 20:10

NVD link : CVE-2026-52746

Mitre link : CVE-2026-52746

CVE.ORG link : CVE-2026-52746

JSON object : View

Products Affected

jsonata

jsonata

CWE

CWE-1333

Inefficient Regular Expression Complexity

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