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New React Server Components Flaw Could Let Attackers Trigger DoS

ID: 0a655f58-ec4d-53ed-a8d0-0d8df41e86af

STIX ID: report--0a655f58-ec4d-53ed-a8d0-0d8df41e86af

Feed Name: GBHackers

Threat Score
70/100

Date Published: 2026-04-10

Date Updated: 2026-04-22

Author: Divya

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A high-severity DoS vulnerability (CVE-2026-23869) in React Server Components' server-side DOM packages (react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack) across multiple 19.x release lines allows unauthenticated, low-complexity HTTP requests to trigger excessive CPU consumption and application downtime; administrators should upgrade to patched versions 19.0.5, 19.1.6, or 19.2.5.

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