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OpenAdvisories
High · 8.2 CVE-2026-94482 EUVD-2026-108214GHSA-p3m5-59mp-jv5r

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

Published Oct 22, 2026 · Updated Oct 30, 2026 · Assigned by GitHub_M

Description

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.

Affected products

VendorProductAffectedFixed
vercel next.js >= 13.0.0, < 15.5.28, >= 16.0.0, < 16.4.1 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Wolfi

ReleasePackageFixed inAdvisory
Wolfi rolling jitsucom-jitsu-console 2.11.0-r41 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm next >= 13.0.0, < 15.5.28 15.5.28 GHSA-p3m5-59mp-jv5r
npm next >= 16.0.0, < 16.4.1 16.4.1 GHSA-p3m5-59mp-jv5r

References