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Critical React Flaw CVE-2025-55182 Exposes Major Security Risks

Critical React Flaw CVE-2025-55182 Exposes Major Security Risks

First seen 3 Dec 2025, 22:41 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

A maximum-severity vulnerability in the React JavaScript library, tracked as CVE-2025-55182, allows unauthenticated remote code execution on affected instances. Security researchers report that 39 percent of cloud environments are vulnerable, and exploitation is expected to occur imminently. Developers are actively working to patch the flaw as it threatens numerous applications relying on React Server Components.

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