Feed›Vulnerability›Multiple Critical Vulnerabilities Patched in Next.js and Rea...
VulnerabilityCyber Security News
7.5 — HIGH

Multiple Critical Vulnerabilities Patched in Next.js and React Server Components

📅 8 May 2026 at 03:01 UTC📰 Cyber Security NewsView original source ↗
Multiple Critical Vulnerabilities Patched in Next.js and React Server Components

Vercel has released an extensive set of security advisories for Next.js, addressing more than a dozen vulnerabilities, including denial-of-service, middleware bypass, server-side request forgery, and cross-site scripting. The flaws affect Next.js versions 13.x through 16.x using the App Router, as well as React Server Components packages for versions 19.x. CVE-2026-23870: Denial of Service via React […] The post Multiple Critical Vulnerabilities Patched in Next.js and React Server Components appeared first on Cyber Security News.

🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview

Multiple critical vulnerabilities were discovered in Next.js and React Server Components, allowing attackers to trigger denial-of-service attacks, middleware bypass, server-side request forgery, and cross-site scripting. The flaws affect versions 13.x through 16.x of Next.js using the App Router, as well as React Server Components packages for versions 19.x.

⚙️Technical Details
CVEs
CVE-2026-23870
Affected Systems
Next.jsReact Server Components
Attack Vectors
NETWORK
💥Impact Assessment
Severity: critical
Who Is at Risk
Developers and organizations using Next.js and React Server Components
🛡️Recommended Actions
1Regularly update to the latest versions of Next.js and React Server Components
2Implement security measures such as rate limiting and IP blocking
3Monitor server logs for suspicious activity
📦Affected Products
Next.jsReact Server Components
🔐NVD Verified DataVERIFIED
CVE-2026-23870 ↗CVSS 7.5 — HIGH
Attack Vector
NETWORK
Complexity
LOW
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Read the full article

This is a curated summary. The complete article is available at Cyber Security News.

Read on Cyber Security News ↗
← Back to feed