Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/sudo-secure/security-research/blob/main/extend-deep/prototype
- https://vuldb.com/submit/792387
- https://vuldb.com/vuln/358256
- https://vuldb.com/vuln/358256/cti
FAQ
What is CVE-2026-6621?
CVE-2026-6621 is a vulnerability with a CVSS score of 7.3 (HIGH). 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 contr...
How severe is CVE-2026-6621?
CVE-2026-6621 has been rated HIGH with a CVSS base score of 7.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-6621?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.