CVE-2026-64645 (GCVE-0-2026-64645)

Vulnerability from cvelistv5 – Published: 2026-07-27 17:37 – Updated: 2026-07-28 14:02
VLAI
Title
Next.js: Server-Side Request Forgery in rewrites via attacker-controlled destination hostname
Summary
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.
Severity
8.3 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 14:01 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7825 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
vercel next.js Affected: >= 12.0.0 < 15.5.21
Affected: >= 16.0.0, < 16.2.11
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.