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CVE-2026-64645

Next.js: Server-Side Request Forgery in rewrites via attacker-controlled destination hostname PUBLISHED

Description (CNA)

Next.js is a React framework for building full-stack web applications. In versions 12.0.0 through 15.5.20 and 16.0.0 through 16.2.10, a rewrites() or redirects() rule that builds its external destination hostname from request-controlled input can be pointed at an arbitrary hostname, regardless of the rule's hostname suffix. For a rewrite, Next.js proxies the request to that arbitrary host and serves the response from the application's origin, leading to Server-Side Request forgery. A redirects() rule configured this way is vulnerable to an Open Redirect. This issue has been fixed in versions 15.5.21 and 16.2.11.

Affected (CNA)

Vendor / productVersions
vercel / next.jsaffected >= 12.0.0 < 15.5.21; affected >= 16.0.0, < 16.2.11

CWE

CWE-918, CWE-601

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.