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CVE-2026-64641

nvd nist
Published: Jul 27, 2026Modified: Jul 29, 2026

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8.2
Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less
Source: security-advisories@github.com (Secondary)

Description

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, crafted requests targeting Next.js applications using App Router with at least one Server Action can lead to excessive CPU usage blocking processing of further requests in the same process. This issue has been fixed in versions 15.5.21 and 16.2.11.

Affected (2)

Products: Vercel: Next.js
Vercel
1 product
Next.js
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Vercel
Next.js
From 13.0.0 to 15.5.21
Next.js
From 16.0.0 to 16.2.11

Related CWEs

CWE-834
Excessive Iteration
The product performs an iteration or loop without sufficiently limiting the number of times that the loop is executed.

References (5)

Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
Issue TrackingPatch
Source: security-advisories@github.com
ProductRelease Notes
Source: security-advisories@github.com
ProductRelease Notes
Source: security-advisories@github.com
Vendor Advisory

Timeline

No history available yet.