Description

A vulnerability was determined in 1024bit extend-deep up to 0.1.6. The impacted element is an unknown function of the file index.js. This manipulation of the argument __proto__ causes improperly controlled modification of object prototype attributes. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The code repository of the project has not been active for many years.

INFO

Published Date :

2026-04-20T08:30:14.457Z

Last Modified :

2026-04-20T08:30:14.457Z

Source :

VulDB
AFFECTED PRODUCTS

The following products are affected by CVE-2026-6621 vulnerability.

No data.

REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-6621.

URL Resource
https://github.com/sudo-secure/security-research/blob/main/extend-deep/prototype-pollution/PoC.md cve-icon cve-icon
https://vuldb.com/submit/792387 cve-icon cve-icon
https://vuldb.com/vuln/358256 cve-icon cve-icon
https://vuldb.com/vuln/358256/cti cve-icon cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Detailed values of each vector for above chart.
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact