remcohaszing estree-util-value-to-estree up to 3.3.2 JavaScript prototype pollution

Summaryinfo

A vulnerability was found in remcohaszing estree-util-value-to-estree up to 3.3.2. It has been rated as critical. This affects an unknown part. Performing a manipulation of the argument JavaScript results in prototype pollution. This vulnerability was named CVE-2025-32014. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in remcohaszing estree-util-value-to-estree up to 3.3.2. This affects an unknown function. The manipulation of the argument JavaScript with an unknown input leads to a prototype pollution vulnerability. CWE is classifying the issue as CWE-1321. The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

estree-util-value-to-estree converts a JavaScript value to an ESTree expression. When generating an ESTree from a value with a property named __proto__, valueToEstree would generate an object that specifies a prototype instead. This vulnerability is fixed in 3.3.3.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2025-32014 since 04/01/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

Upgrading to version 3.3.3 eliminates this vulnerability. Applying the patch d0c394fbc64bc55937ffe4e162b81f15ba506e55 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• remcohaszing

Name

• estree-util-value-to-estree

Version

• 3.3.0
• 3.3.1
• 3.3.2

License

• open-source

Website

• Product: https://github.com/remcohaszing/estree-util-value-to-estree/

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