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Vulnerabilities

Vulnerability · CVE-2025-57752

Next.js is a React framework for building full-stack web applications.

Published Aug 29, 2025 · catalog updated Sep 2, 2025 · Cloudflare

Last checked Oct 25, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-57752. EPSS is 0.35%. Act only if a listed version of Cloudflare is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium6.2
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.35%
Remediation
Version ranges on file
Affected products
vendor vercel next.js 15.0.0, < 15.4.5

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

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor vercel next.js 15.0.0, < 15.4.515.0.0, < 15.4.5

How to fix CVE-2025-57752

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-57752. EPSS is 0.35%. Act only if a listed version of Cloudflare is installed.

Which versions are affected?

Compare what you have installed with vercel next.js 15.0.0, < 15.4.5 15.0.0, < 15.4.5. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.35%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 29, 2025 · EUVD

    Detected

    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

  2. Sep 2, 2025 · EUVD

    Updated

    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

Sources

  • Cloudflare WAF rulesVendor advisoryCVE-2025-57752

    CVE-2025-57752 is named in an emergency Cloudflare managed-rules release. The default action recorded for those rules is Block.

    developers.cloudflare.com
  • CVE.orgVulnerability recordCVE-2025-57752

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-57752

    30-day exploitation probability 0.35%

    first.org
  • EUVDVulnerability recordEUVD-2025-28624

    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

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • Cloudflare WAF rulesOct 25, 2026
  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 22, 2026
  • EUVDOct 22, 2026