Bug 2507643 (CVE-2026-64646) - CVE-2026-64646 next: Next.js: Denial of Service via excessive memory consumption in Server Actions
Summary: CVE-2026-64646 next: Next.js: Denial of Service via excessive memory consumpt...
Keywords:
Status: NEW
Alias: CVE-2026-64646
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-27 20:01 UTC by OSIDB Bzimport
Modified: 2026-07-28 13:39 UTC (History)
14 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-07-27 20:01:46 UTC 
Next.js is a React framework for building full-stack web applications. In versions 13.0.0 through 15.5.20 and 16.0.0 through 16.2.10, requests targeting Next.js applications using App Router with at least one Server Action can lead to excessive memory consumption if that Server Actions uses the Edge runtime. This issue has been fixed in versions 15.5.21 and 16.2.11.
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