airjp73 rvf up to 6.0.3/7.0.1 prototype pollution

Summaryinfo

A vulnerability categorized as critical has been discovered in airjp73 rvf up to 6.0.3/7.0.1. This issue affects some unknown processing. Such manipulation leads to prototype pollution. This vulnerability is listed as CVE-2026-44483. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in airjp73 rvf up to 6.0.3/7.0.1 and classified as critical. Affected by this issue is an unknown functionality. The manipulation with an unknown input leads to a prototype pollution vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity, and availability. CVE summarizes:

RVF (formerly Remix Validated Form) provides easy form validation and state management for React. From 6.0.0 to before 6.0.4 and 7.0.2, setPath in @rvf/set-get (used by @rvf/core to flatten incoming form data into a nested object) does not block the keys __proto__, constructor, or prototype when walking a path. Because field names in submitted form data are passed directly to setPath via preprocessFormData (and through parseFormData / validate), an attacker who can submit a form to a Remix / React Router app using the library can set arbitrary properties on Object.prototype of the running server process. This is a default-reachable prototype pollution primitive: no special configuration is required. Any endpoint that accepts a form via parseFormData or runs a validator created with createValidator is affected. This vulnerability is fixed in 6.0.4 and 7.0.2.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-44483 since 05/06/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

Upgrading to version 6.0.4 or 7.0.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-32564). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• airjp73

Name

• rvf

Version

• 6.0.0
• 6.0.1
• 6.0.2
• 6.0.3
• 7.0.0
• 7.0.1

Website

• Product: https://github.com/airjp73/rvf/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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