PT-2026-33736 · 1024Bit · Deep-Extend

Sudosme · Published 2026-04-20 · Updated 2026-04-20 · CVE-2026-6621

Mitre

CVSS v3.1

7.3

High

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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.

Exploit

Fix

Prototype Pollution

Code Injection

Weakness Enumeration

CWE-1321

CWE-94

Related Identifiers

CVE-2026-6621

Affected Products

Deep-Extend

References · 5

• 🔥 https://github.com/sudo-secure/security-research/blob/main/extend-deep/prototype-pollution/PoC.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-6621 · Security Note
• https://vuldb.com/vuln/358256/cti · Note
• https://vuldb.com/submit/792387 · Note
• https://vuldb.com/vuln/358256 · Note