CVE-2026-78654: Code Injection (CVSS 7.3)

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.

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CVSS v3.1 Score

7.3

HIGH

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

EPSS — Exploit Prediction

0.0042

Probability of exploitation

0.35%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-94 CWE-94

CWE-1321 CWE-1321

References

Other References

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

Frequently Asked Questions

What is CVE-2026-78654? +

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. It has a CVSS v3.1 base score of 7.3 (HIGH).

How severe is CVE-2026-78654? +

CVE-2026-78654 has a CVSS v3.1 score of 7.3 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0042, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-78654? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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