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TI-2026-46206 Aliases CVE-2026-64645GHSA-p9j2-gv94-2wf4

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

Priority LOW 36CWE-601Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Spoofing
Confidentiality · integrity · availability
High · Low · None
Fix status
Partial Red Hat: 1 fixed, 1 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-601.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00414 35th percentileScored 2026-11-07
Fix Partial next.js (vercel): 16.2.11next (npm): 15.5.21, 16.2.11Red Hat: 1 advisoryRed Hat: 1 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
vercelnext.js>= 12.0.0 < 15.5.21; 16.0.0 to before 16.2.1116.2.11Patch availableCNA
—next (npm)12.0.0 to before 15.5.2115.5.21Patch availableGHSA-p9j2-gv94-2wf4
—next (npm)16.0.0 to before 16.2.1116.2.11Patch availableGHSA-p9j2-gv94-2wf4
  • next.js Vendorvercel Affected >= 12.0.0 < 15.5.21; 16.0.0 to before 16.2.11 Fixed in 16.2.11 Patch available CNA
  • next (npm) Vendor— Affected 12.0.0 to before 15.5.21 Fixed in 15.5.21 Patch available GHSA-p9j2-gv94-2wf4
  • next (npm) Vendor— Affected 16.0.0 to before 16.2.11 Fixed in 16.2.11 Patch available GHSA-p9j2-gv94-2wf4

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:*12.0.0 to before 15.5.21; 16.0.0 to before 16.2.11Vulnerablevercel
  • cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* Versions 12.0.0 to before 15.5.21; 16.0.0 to before 16.2.11 Vulnerable ·vercel

Remediation

  • Fix · CNA next.js (vercel) Fixed in 16.2.11
  • Fix · GHSA-p9j2-gv94-2wf4 next (npm) Fixed in 15.5.21 Advisory →
  • Fix · GHSA-p9j2-gv94-2wf4 next (npm) Fixed in 16.2.11 Advisory →

Red Hat 1 advisory

  • RHSA-2026:54435 Released 2026-08-12 · Red Hat rating Important
    Streams for Apache Kafka 3.2.1 release and security update
    • Streams for Apache Kafka 3.2.1

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux AI (RHEL AI) 3AffectedNo fix yet
Streams for Apache Kafka 3.2.1Fixed RHSA-2026:54435
Not affected: 6 products
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Red Hat Trusted Artifact Signer
  • streams for Apache Kafka 2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-64645
  2. 2026-10-03 Alias added: GHSA-p9j2-gv94-2wf4
  3. 2026-11-03 Affected versions changed · Red Hat

References

Patch 2

Advisory 1

Other 3

  • TI-2025-34861 Deserialization of untrusted data in Meta react-server-dom-webpack KEVCVSS 3.1CRITICAL 10.0
  • TI-2025-21309 Authorization Bypass in Next.js Middleware CVSS 3.1CRITICAL 9.1
  • TI-2025-34863 Deserialization of untrusted data in Meta react-server-dom-webpack CVSS 3.1HIGH 7.5
  • TI-2024-31371 Cache Poisoning in next.js CVSS 3.1HIGH 7.5
  • TI-2023-24914 Next.js before 13.4.20-canary.13 lacks a cache-control header and thus empty prefetch… CVSS 3.1HIGH 7.5
  • TI-2026-32490 Next.js: Server-side request forgery in applications using WebSocket upgrades CVSS 3.1HIGH 8.6
See all 62 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences