Description
The makerjs.extendObject function copies properties from source objects without proper validation, potentially exposing applications to security risks. The function lacks hasOwnProperty() checks and does not filter dangerous keys, allowing inherited properties and potentially malicious properties to be copied to target objects.
Recommendation
Update the makerjs package to the latest compatible version. Followings are version details:
- Affected version(s): <= 0.19.1
- Patched version(s): 0.19.2
References
Related Issues
- Unsafe object property setter in mathjs - CVE-2026-40897
- Payload has Insufficient Filename Validation in Client-Upload Signed-URL Endpoints - CVE-2026-34750
- Forge has signature forgery in Ed25519 due to missing S > L check - CVE-2026-33895
- Forge has Denial of Service via Infinite Loop in BigInteger.modInverse() with Zero Input - CVE-2026-33891
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- Tags:
- npm
- makerjs
Anything's wrong? Let us know Last updated on January 29, 2026


