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Critical React Server Components vulnerability impacts Next.js, Replit

By PulseAugur Editorial · [2 sources] ·

A critical security vulnerability has been disclosed affecting React Server Components, impacting specific versions of React and Vercel's Next.js framework. The vulnerability could lead to issues such as middleware bypass, denial of service, and server-side request forgery. Replit has implemented mitigations for its deployments and is notifying affected users, while recommending immediate upgrades to patched versions of Next.js and React dependencies. AI

IMPACT Security vulnerability in React Server Components could impact AI development tools and platforms that rely on these components.

RANK_REASON Disclosure of a security vulnerability in a widely used software component. [lever_c_demoted from research: ic=2 ai=0.4]

Read on Replit blog →

AI-generated summary · Google Gemini · from 2 sources. How we write summaries →

Critical React Server Components vulnerability impacts Next.js, Replit

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Disclosure of a security vulnerability in a widely used software component. [lever_c_demoted from research: ic=2 ai=0.4]
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safety, product
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COVERAGE [2]

  1. Replit blog TIER_1 English(EN) ·

    Critical Security Vulnerability in React Server Components

    Yesterday, a critical vulnerability in React Server Components was announced that affects both reactjs and Vercel’s NextJs. The vulnerability is present in versions 19.0, 19.1.0, 19.1.1, and 19.2.0 of: react-server-dom-webpack react-server-dom-parcel react-server-dom-turbopack an…

  2. Mastodon — fosstodon.org TIER_1 English(EN) · [email protected] ·

    Upgrade immediately. # NextJs : 15.5.18, 16.2.6 # React : 19.0.6, 19.1.7, 19.2.6 for the react-server-dom-parcel, react-server-dom-webpack and react-server-dom-

    Upgrade immediately. # NextJs : 15.5.18, 16.2.6 # React : 19.0.6, 19.1.7, 19.2.6 for the react-server-dom-parcel, react-server-dom-webpack and react-server-dom-turbopack packages https:// vercel.com/changelog/next-js-m ay-2026-security-release Vulnerability: - Middleware and prox…

    LINKS vercel.com/…/next-js-may-2026-security-re…

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