Vulnerability Description
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 Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/vercel/flags/blob/main/packages/flags/guides/upgrade-to-v4.md
- https://github.com/vercel/flags/security/advisories/GHSA-892p-pqrr-hxqr
- https://vercel.com/changelog/information-disclosure-in-flags-sdk-cve-2025-46332
FAQ
What is CVE-2025-46332?
CVE-2025-46332 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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...
How severe is CVE-2025-46332?
CVE-2025-46332 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-46332?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.