CVE-2025-46332 json
Information Disclosure via Flags override link
published last yr. modified 4mo ago also GHSA-892p-pqrr-hxqr , EUVD-2025-13288
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 27%
- public exploits
- 0
- none known
Summary
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 flags@4.0.0, users of flags and @vercel/flags should also migrate to flags@4.0.0.
Patch / fix
- npm flags 4.0.0
Is CVE-2025-46332 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| GitHub | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | flags | <4.0.0 |
4.0.0 |
| npm | @vercel/flags | <=3.1.1 |
no fix listed |
Affected products
- vercel flags
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
github.com
/vercel/flags/security/advisories/GHSA-892p-pqrr-hxqr
web
-
github.com
/vercel/flags/blob/main/packages/flags/guides/upgrade-to-v4.md
web
-
vercel.com
/changelog/information-disclosure-in-flags-sdk-cve-2025-46332
web
-
nvd.nist.gov
/vuln/detail/CVE-2025-46332
advisory
-
github.com
/vercel/flags
package
Sources
- CVE List CVE-2025-46332
- GitHub Advisory GHSA-892p-pqrr-hxqr
- NVD CVE-2025-46332
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.