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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00416.

Exploitation poc

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
cleverbrush framework affected
Version Status Constraints
4.0 affected —
4.1 affected —
4.2 affected —
4.3 affected —
4.4.0 affected —
4.4.1 unaffected —
cleverbrush deep affected
Version Status Constraints
4.0 affected —
4.1 affected —
4.2 affected —
4.3 affected —
4.4.0 affected —
4.4.1 unaffected —

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Project Subscriptions

Vendors Products
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Deep Subscribe
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/cleverbrush/framework/ cve-icon cve-icon
https://github.com/cleverbrush/framework/commit/810398c1308c500c3b8b6af380b5a89371389327 cve-icon cve-icon
https://github.com/cleverbrush/framework/issues/213 cve-icon cve-icon
https://github.com/cleverbrush/framework/pull/215 cve-icon cve-icon
https://github.com/cleverbrush/framework/releases/tag/%40cleverbrush/async%404.4.1 cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-78654 cve-icon cve-icon
https://vuldb.com/submit/886401 cve-icon cve-icon cve-icon
https://vuldb.com/vuln/394866 cve-icon cve-icon
https://vuldb.com/vuln/394866/cti cve-icon cve-icon
History

Tue, 25 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 25 Aug 2026 06:15:00 +0000

Type Values Removed Values Added
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.
Title cleverbrush framework/deep deepExtend.ts deepExtend prototype pollution
First Time appeared Cleverbrush
Cleverbrush deep
Cleverbrush framework
Weaknesses CWE-1321
CWE-94
CPEs cpe:2.3:a:cleverbrush:deep:*:*:*:*:*:*:*:*
cpe:2.3:a:cleverbrush:framework:*:*:*:*:*:*:*:*
Vendors & Products Cleverbrush
Cleverbrush deep
Cleverbrush framework
References
Metrics cvssV2_0

{'score': 7.5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C'}

cvssV3_0

{'score': 7.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C'}

cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C'}

cvssV4_0

{'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/E:P'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-08-25T13:17:33.100Z

Reserved: 2026-08-24T23:08:18.011Z

Link: CVE-2026-78654

cve-icon Vulnrichment

Updated: 2026-08-25T13:17:09.195Z

cve-icon NVD

Status : Received

Published: 2026-08-25T06:19:01.940

Modified: 2026-08-25T14:16:57.247

Link: CVE-2026-78654

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-25T07:30:12Z

Weaknesses