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Vulnerability · Published Mar 6, 2024 · Assigned by GitHub_M

CVE-2024-27307JSONata expression can pollute the "Object" prototype

Critical 9.8

In plain English

A critical-severity prototype pollution in jsonata from jsonata-js. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)1.4%top 27.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

JSONata is a JSON query and transformation language. Starting in version 1.4.0 and prior to version 1.8.7 and 2.0.4, a malicious expression can use the transform operator to override properties on the `Object` constructor and prototype. This may lead to denial of service, remote code execution or other unexpected behavior in applications that evaluate user-provided JSONata expressions. This issue has been fixed in JSONata versions 1.8.7 and 2.0.4. Applications that evaluate user-provided expressions should update ASAP to prevent exploitation. As a workaround, one may apply the patch manually.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
npmjsonata1.8.7GHSA-fqg8-vfv7-8fj8
npmjsonata2.0.4GHSA-fqg8-vfv7-8fj8

Affected products (as reported)

VendorProductVersions
jsonata-js jsonata >= 1.4.0, < 1.8.7>= 2.0.0, < 2.0.4

Weakness: CWE-1321 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References