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@messageformat/runtime

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 Withdrawn advisories and news are excluded.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

  1. Medium, CVSS 5.3npmAmendedPublished

    messageformat prototype pollution vulnerability

    CVE-2025-57353 · GHSA-6xv4-9cqp-92rh

    Affected
    • npm @messageformat/runtime >= 3.0.1, <= 3.0.1
    Fixed in
    3.0.2· Vendor fix available
    Issue
    The Runtime components of messageformat package for Node.js version 3.0.1 contain a prototype pollution vulnerability. Due to insufficient validation of nested message keys during the processing of message data, an attacker can manipulate the prototype chain of JavaScript objects by providing specially crafted input. This can result in the injection of arbitrary properties into the Object.prototype, potentially leading to denial of service conditions or unexpected application behavior. The vulnerability allows attackers to alter the prototype of base objects, impacting all subsequent object instances throughout the application's lifecycle. Version 3.0.2 contains a fix.

    Recommended action: Upgrade to 3.0.2 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 →