Prototype Pollution in @rvf/set-get Affects Core Functions
CVE-2026-112309

8.7HIGH

Key Information:

Vendor

Airjp73

Status
@rvf/set-get
Vendor
CVE Published:
19 October 2026

What is CVE-2026-112309?

The @rvf/set-get library prior to version 7.0.4 is vulnerable to a prototype pollution attack through the setPath function. This allows malicious actors to overwrite properties of built-in functions using methods from the inherited Object.prototype. As a result, an attacker can submit a form field named 'hasOwnProperty.call' via the @rvf/core form parsing. This manipulation can lead to a denial of service across the entire process, necessitating a restart to restore functionality. Users are strongly advised to upgrade to the latest version to mitigate this vulnerability.

Affected Version(s)

@rvf/set-get 0 < 7.0.4

References

https://github.com/airjp73/rvf/commit/4a5e118667549ac41f0...
patch
https://github.com/airjp73/rvf/blob/61172ff01bf1250893108...
technical-description
https://github.com/airjp73/rvf/blob/61172ff01bf1250893108...
technical-description

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Zachariah Mithani
.