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CVE-2025-46332

CVE-2025-46332 · Information Disclosure via Flags override link

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Flags SDK is an open-source feature flags toolkit for Next.js and SvelteKit. Impacted versions include flags from 3.2.0 and prior and @vercel/flags from 3.1.1 and prior as certain circumstances allows a bad actor with detailed knowledge of the vulnerability to list all flags returned by the flags discovery endpoint (.well-known/vercel/flags). This vulnerability allows for information disclosure, where a bad actor could gain access to a list of all feature flags exposed through the flags discovery endpoint, including the flag names, flag descriptions, available options and their labels (e.g. true, false), and default flag values. This issue has been patched in [email protected], users of flags and @vercel/flags should also migrate to [email protected].

CVSS 6.5 · Medium · EPSS 0.3% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • flags

    Versions
    • < 4.0.0: Affected

    No fix published

  • flags npm

    Affected ranges
    • SEMVER: < 4.0.0

    Update to 4.0.0

  • @vercel/flags npm

    Affected ranges
    • SEMVER: ≤ 3.1.1

    No fix published

Original sources

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