CVE-2026-94482: high-severity vulnerability in vercel next.js
Next.js: Denial of Service in App Router using Server Actions
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.2epss 0.4%
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.
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
Affected products
vercel · next.jsRelated CVEs — vercel next.js
In the same product, most dangerous first.
CVE-2025-29927CRITICALAuthorization Bypass in Next.js MiddlewareEPSS 99.2%CVE-2024-46982HIGHCache Poisoning in next.jsEPSS 59.2%CVE-2021-43803HIGHUnexpected server crash in Next.jsEPSS 47.3%CVE-2026-44578HIGHNext.js: Server-side request forgery in applications using WebSocket upgradesEPSS 35.5%CVE-2024-34351HIGHNext.js Server-Side Request Forgery in Server ActionsEPSS 5.5%CVE-2024-51479HIGHAuthorization bypass in Next.jsEPSS 4.0%