Vulnerabilities CVE-2026-52746

CVE-2026-52746

High

Open

TLP:CLEAR

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

NVD CVE.org

DDoS

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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.

Details

CVSS Score: 7.5
EPSS Score ⓘ: 0.38%

30.7th percentile
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Confidence: 90%
Published: Jul 17, 2026
Last Modified: Aug 3, 2026

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