CVE-2026-112309: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in airjp73 @rvf/set-get
Description
CVE-2026-112309 is a prototype pollution vulnerability in the @rvf/set-get package before version 7.0.4. It allows unauthenticated attackers to overwrite properties of shared built-in functions via inherited Object.prototype methods. Specifically, attackers can submit a form field named hasOwnProperty.call through @rvf/core form parsing, replacing the shared function property and causing a process-wide denial of service until the application is restarted.
CVSS v4.0
Score 8.7high
Affected software
airjp73
@rvf/set-get
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
@rvf/set-get versions prior to 7.0.4 contain a prototype pollution vulnerability in the setPath function. This flaw enables attackers to manipulate inherited Object.prototype attributes, such as hasOwnProperty.call, by submitting specially crafted form fields. The exploitation results in overwriting shared built-in function properties, leading to denial of service affecting the entire process until it is restarted.
Potential Impact
An unauthenticated attacker can cause a denial of service condition that affects the entire process by overwriting shared built-in function properties. This disruption persists until the affected application is restarted, potentially impacting availability.
Mitigation Recommendations
A fix is available in version 7.0.4 of @rvf/set-get. Users should upgrade to version 7.0.4 or later to remediate this vulnerability. No vendor advisory content is provided, so patch status is inferred from the version information. No additional mitigations are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-19T14:14:29.420Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad63bfd2cdf04f65667d8be
Added to database: 10/19/2026, 15:49:17 UTC
Last enriched: 10/19/2026, 16:03:19 UTC
Last updated: 10/19/2026, 16:03:19 UTC
Views: 5
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.