React Server Components Security Vulnerabilities: Denial of Service and Source Code Exposure Risks
By
sangeeth96
Slow-proofed and worth the wait. Worth its weight in flour.
Summary
The React team has disclosed critical security vulnerabilities in React Server Components affecting versions 19.0.0 through 19.2.3, including denial of service and source code exposure risks. The vulnerabilities are present in the same packages as CVE-2025-55182, and immediate upgrades to patched versions 19.0.4, 19.1.5, or 19.2.4 are required. The React team recommends immediate action due to the severity of the vulnerabilities, with full details to be provided after fixes are rolled out.
Key quotes
· 5 pulledWe recommend upgrading immediately due to the severity of the newly disclosed vulnerabilities.
These vulnerabilities are present in the same packages and versions as CVE-2025-55182.
Fixes were backported to versions 19.0.4, 19.1.5, and 19.2.4.
Immediate Action Required
Further details of these vulnerabilities will be provided after the rollout of the fixes are complete.
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