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makerjs

Open actionable advisories and recorded vendor fixes. This public package view has no inventory attached and cannot establish whether your deployment is affected. A vendor fix never resolves your finding; verify your installed version and the source guidance.

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1 actionable advisory, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. Medium, CVSS 6.5npmAmendedPublished

    Maker.js has Unsafe Property Copying in makerjs.extendObject

    CVE-2026-24888 · GHSA-2cp6-34r9-54xx

    Affected
    • npm makerjs <= 0.19.1
    Fixed in
    0.19.2· Vendor fix available
    Issue
    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. Details The extendObject function iterates over source object properties using a for...in loop without: 1. Checking hasOwnProperty() to exclude inherited properties 2. Filtering dangerous keys (proto, constructor, prototype) 3. Validating property sources Affected Code File: https://github.com/microsoft/maker.js/blob/98cffa82a372ff942194c925a12a311253587167/packages/maker.js/src/core/maker.ts#L232-L241 PoC Impact Security Implications 1. Unexpected Behavior: Properties may appear on target objects but not be own properties, breaking hasOwnProperty() assumptions in security-sensitive code. 2. Security Bypass Risk: Code relying on hasOwnProperty() for…

    Recommended action: Upgrade to 0.19.2 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:osv.dev (1)github.com (2)Source checked Evidence →