CVE-2026-6621
High · 7.3CVSS
7.3
EPSS
0.6%
Published
Apr 20, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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