CVE-2026-78654

medium

Description

A vulnerability has been found in cleverbrush framework and deep up to 4.4.0. This impacts the function deepExtend of the file libs/deep/src/deepExtend.ts. The manipulation leads to improperly controlled modification of object prototype attributes. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used. Upgrading to version 4.4.1 will fix this issue. The identifier of the patch is 810398c1308c500c3b8b6af380b5a89371389327. You should upgrade the affected component.

References

https://vuldb.com/vuln/394866/cti

https://vuldb.com/vuln/394866

https://vuldb.com/submit/886401

https://vuldb.com/cve/CVE-2026-78654

https://github.com/cleverbrush/framework/releases/tag/%40cleverbrush/async%404.4.1

https://github.com/cleverbrush/framework/pull/215

https://github.com/cleverbrush/framework/issues/213

https://github.com/cleverbrush/framework/commit/810398c1308c500c3b8b6af380b5a89371389327

https://github.com/cleverbrush/framework/

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-65304

Details

Source: Mitre, NVD

Published: 2026-08-25

Updated: 2026-09-28

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 7.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Severity: High

CVSS v4

Base Score: 6.9

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00416