CVE-2026-78654cleverbrush framework/deep deepExtend.ts deepExtend prototype pollution
Updated under an hour ago ()
Does this affect you?
It affects cleverbrush framework and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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.
- CVSS
- 7.3 HIGH (v3.1, CNA)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
- Weakness (CWE)
- CWE-1321, CWE-94
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Aug 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
cleverbrush framework cleverbrush:framework | 4.0; 4.1; 4.2; 4.3; 4.4.0; 4.4.1 not affected | CNA record |
cleverbrush deep cleverbrush:deep | 4.0; 4.1; 4.2; 4.3; 4.4.0; 4.4.1 not affected | CNA record |
References
- https://vuldb.com/vuln/394866vdb-entry, technical-description
- https://vuldb.com/vuln/394866/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-78654third-party-advisory
- https://vuldb.com/submit/886401third-party-advisory
- https://github.com/cleverbrush/framework/issues/213exploit, issue-tracking
- https://github.com/cleverbrush/framework/pull/215issue-tracking, patch
- https://github.com/cleverbrush/framework/commit/810398c1308c500c3b8b6af380b5a89371389327patch
- https://github.com/cleverbrush/framework/releases/tag/%40cleverbrush/async%404.4.1patch
- https://github.com/cleverbrush/framework/product
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.