CVE-2025-57752
Next.js Affected by Cache Key Confusion for Image Optimization API Routes
Description
A vulnerability in Next.js Image Optimization has been fixed in v15.4.5 and v14.2.31. When images returned from API routes vary based on request headers (such as `Cookie` or `Authorization`), these responses could be incorrectly cached and served to unauthorized users due to a cache key confusion bug. All users are encouraged to upgrade if they use API routes to serve images that depend on request headers and have image optimization enabled. More details at [Vercel Changelog](https://vercel.com/changelog/cve-2025-57752)
How to fix CVE-2025-57752
To remediate CVE-2025-57752, upgrade the affected package to a fixed version below.
- —upgrade to 14.2.31 or later
Is CVE-2025-57752 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 0.9.9, < 14.2.31
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.2 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |