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@conform-to/yup

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.

Open advisories

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 Withdrawn advisories and news are excluded.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

  1. High, CVSS 8.6npmAmendedPublished

    Conform contains a Prototype Pollution Vulnerability in parseWith... function

    CVE-2024-32866 · GHSA-624g-8qjg-8qxf

    Affected
    • npm @conform-to/yup >= 1.0.0, <= 1.1.0; < 0.9.2
    Fixed in
    0.9.21.1.1· Vendor fix available
    Issue
    Conform allows the parsing of nested objects in the form of object.property. Due to an improper implementation of this feature, an attacker can exploit it to trigger prototype pollution by passing a crafted input to parseWith... functions. PoC Details The invocation of the parseWithZod function in the above PoC triggers the setValue function through getSubmissionContext and parse, executing the following process, resulting in prototype pollution: This is caused by the lack of object existence checking on line 117 in formdata.ts, where the code only checks for the presence of pointer[key] without proper validation. Impact Applications that use conform for server-side validation of form data or URL parameters are affected by this vulnerability.

    Recommended action: Upgrade to 1.1.1 or 0.9.2 by release line, 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 →