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JSONata (< 2.2.0)

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medium advisory

JSONata $toMillis Function Vulnerability Leads to Denial of Service (CVE-2026-52746)

A high-severity vulnerability, CVE-2026-52746, in JSONata versions prior to 2.2.0 allows unauthenticated attackers to cause a denial of service by exploiting superlinear backtracking in the ISO-8601 validation regex through malicious inputs to the `$toMillis` function, leading to resource exhaustion and application unresponsiveness.

JSONata denial-of-service nodejs vulnerability CVE-2026-52746
1t