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ChangelogNetlify
Severity
Critical
Published
18 days agoApr 8, 2026
Signal
73

Security Update: DoS vulnerability in Next.js and React Server Components

A denial-of-service (DoS) vulnerability (CVE-2026-23869, CVSS 7.5) has been disclosed affecting React Server Components (RSCs), a feature used by Next.js and other React metaframeworks. A malicious payload can cause excessive CPU consumpti…

Official source entry

Security Update: DoS vulnerability in Next.js and React Server Components

From Netlify Changelog. The simplified record can be checked against the original wording.

Why it matters

Netlify updated netlify changelog semantics for hosting and frontend-infra. Review the official entry before the next deploy.

Who should care

  • frontend
  • backend
  • infra

Affected stack

  • hosting
  • frontend-infra
  • developer-workflow
  • deployments

Categories

securityapi