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Vulnerabilities

Vulnerability · CVE-2026-94482

Next.js: Denial of Service in App Router using Server Actions

Published Oct 22, 2026 · Red Hat Red Hat Enterprise Linux

Last checked Oct 31, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-94482. EPSS is 0.39%. Act only if a listed version of Red Hat Red Hat Enterprise Linux is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.39%
Remediation
Vendor / distro source
Affected products
npm next

Next.js is a React framework for building full-stack web applications. From 13.0.0 until 15.5.28 and 16.4.1, crafted requests targeting App Router applications with at least one Server Action can cause excessive CPU consumption and block processing of further requests in the same process. Applications using the Pages Router and App Router applications without Server Actions are not affected. This issue is fixed in versions 15.5.28 and 16.4.1.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • npm nextversion unspecified

How to fix CVE-2026-94482

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-94482. EPSS is 0.39%. Act only if a listed version of Red Hat Red Hat Enterprise Linux is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-770: Allocation of Resources Without Limits or Throttling. EPSS 0.39%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Next.js security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 22, 2026 · Red Hat Security Data

    Detected

    next: Next.js: Denial of Service via crafted requests targeting Server Actions

Sources

  • CVE.orgVulnerability recordCVE-2026-94482

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-94482

    30-day exploitation probability 0.39%

    first.org
  • GitLab Advisory DatabasePackage advisoryCVE-2026-94482

    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.

    advisories.gitlab.com
  • Red Hat Security DataVendor advisoryCVE-2026-94482

    next: Next.js: Denial of Service via crafted requests targeting Server Actions

    access.redhat.com
  • Tenable CVE DatabaseVulnerability recordCVE-2026-94482

    Next.js is a React framework for building full-stack web applications. From 13.0.0 until 15.5.28 and 16.4.1, crafted requests targeting App Router applications with at least one Server Action can cause excessive CPU consumption and block processing of further requests in the same process. Applications using the Pages Router and App Router applications without Server Actions are not affected. This

    tenable.com

Freshness

Last verified in this catalog Oct 31, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 31, 2026
  • GitLab Advisory DatabaseOct 23, 2026
  • Red Hat Security DataOct 23, 2026
  • CVE.orgOct 23, 2026
  • Tenable CVE DatabaseOct 23, 2026