CVE-2026-6621

HIGH

1024bit extend-deep index.js prototype pollution

Title source: cna

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.

Scores

CVSS v3 7.3
EPSS 0.0004
EPSS Percentile 13.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Details

CWE
CWE-1321 CWE-94
Status published
Products (7)
1024bit/extend-deep 0.1.0
1024bit/extend-deep 0.1.1
1024bit/extend-deep 0.1.2
1024bit/extend-deep 0.1.3
1024bit/extend-deep 0.1.4
1024bit/extend-deep 0.1.5
1024bit/extend-deep 0.1.6
Published Apr 20, 2026
Tracked Since Apr 20, 2026