CVE-2026-52746
Full vulnerability record from the local CVENow database.
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.
Severity
HIGH
CVSS score
7.5
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-07-17 19:17:16.500000
Last modified
2026-10-24 20:10:00.137000
View original CVE JSON
{
"id": "CVE-2026-52746",
"sourceIdentifier": "[email protected]",
"published": "2026-07-17T19:17:16.500",
"lastModified": "2026-10-24T20:10:00.137",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "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."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "jsonata-js",
"product": "jsonata",
"versions": [
{
"version": ">= 2.0.0, < 2.2.0",
"status": "affected"
},
{
"version": "< 1.8.9",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-07-17T19:44:39.303237Z",
"id": "CVE-2026-52746",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-1333"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:jsonata:jsonata:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.2.0",
"matchCriteriaId": "9DE63D03-94E1-4B63-AF59-DB39971BEBBA"
}
]
}
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}
],
"references": [
{
"url": "https://github.com/jsonata-js/jsonata/commit/80ba95d170f74e3f20f4f36b8b77d8c85cea7686",
"source": "[email protected]",
"tags": [
"Patch"
]
},
{
"url": "https://github.com/jsonata-js/jsonata/commit/d6ffc17cb16a8e53c222205bd274624e919cce0b",
"source": "[email protected]",
"tags": [
"Patch"
]
},
{
"url": "https://github.com/jsonata-js/jsonata/pull/782",
"source": "[email protected]",
"tags": [
"Issue Tracking",
"Patch"
]
},
{
"url": "https://github.com/jsonata-js/jsonata/pull/793",
"source": "[email protected]",
"tags": [
"Issue Tracking",
"Patch"
]
},
{
"url": "https://github.com/jsonata-js/jsonata/releases/tag/v1.8.9",
"source": "[email protected]"
},
{
"url": "https://github.com/jsonata-js/jsonata/releases/tag/v2.2.0",
"source": "[email protected]",
"tags": [
"Product",
"Release Notes"
]
},
{
"url": "https://github.com/jsonata-js/jsonata/security/advisories/GHSA-86vw-mfpg-wwv9",
"source": "[email protected]",
"tags": [
"Patch",
"Vendor Advisory"
]
}
]
}