VulnerabilityAnalyzed

CVE-2025-57752

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.

MEDIUM 6.2EPSS 0.35%

Does this matter?

Lower severity and a low EPSS score (0.35%). Track it; it rarely justifies an emergency change on its own.

Description

Next.js is a React framework for building full-stack web applications. In versions before 14.2.31 and from 15.0.0 to before 15.4.5, Next.js Image Optimization API routes are affected by cache key confusion. 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. This vulnerability has been fixed in Next.js versions 14.2.31 and 15.4.5. All users are encouraged to upgrade if they use API routes to serve images that depend on request headers and have image optimization enabled.

CVSS 3.1: 6.2 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.35% probability · 28th percentile
CISA KEV: Not listed
Weakness: CWE-524
Affected: vercel/next.js
Source: security-advisories@github.com

References

https://github.com/vercel/next.js/commit/6b12c60c61ee80cb0443ccd20de82ca9b4422dddPatch
https://github.com/vercel/next.js/pull/82114Patch
https://github.com/vercel/next.js/security/advisories/GHSA-g5qg-72qw-gw5vVendor Advisory
https://vercel.com/changelog/cve-2025-57752Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.