CVE-2024-32866

Published: Apr 23, 2024Modified: Jun 17, 2026Deferred

8.6

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Exploitability: 3.9 / Impact: 4.7

Source: security-advisories@github.com (Secondary)

Description

Conform, a type-safe form validation library, allows the parsing of nested objects in the form of `object.property`. Due to an improper implementation of this feature in versions prior to 1.1.1, an attacker can exploit the feature to trigger prototype pollution by passing a crafted input to `parseWith...` functions. Applications that use conform for server-side validation of form data or URL parameters are affected by this vulnerability. Version 1.1.1 contains a patch for the issue.

Related CWEs

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

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.

References (6)

https://github.com/edmundhung/conform/blob/59156d7115a7207fa3b6f8a70a4342a9b24c2501/packages/conform-dom/formdata.ts#L117

Source: security-advisories@github.com

https://github.com/edmundhung/conform/commit/4819d51b5a53fd5486fc85c17cdc148eb160e3de

Source: security-advisories@github.com

https://github.com/edmundhung/conform/security/advisories/GHSA-624g-8qjg-8qxf

Source: security-advisories@github.com

https://github.com/edmundhung/conform/blob/59156d7115a7207fa3b6f8a70a4342a9b24c2501/packages/conform-dom/formdata.ts#L117

Source: af854a3a-2127-422b-91ae-364da2661108

https://github.com/edmundhung/conform/commit/4819d51b5a53fd5486fc85c17cdc148eb160e3de

Source: af854a3a-2127-422b-91ae-364da2661108

https://github.com/edmundhung/conform/security/advisories/GHSA-624g-8qjg-8qxf

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.