CVE-2025-55182Used in ransomware
Meta React Server Components
Meta React Server Components Remote Code Execution Vulnerability
What it is
Meta React Server Components contains a remote code execution vulnerability that could allow unauthenticated remote code execution by exploiting a flaw in how React decodes payloads sent to React Server Function endpoints. Please note CVE-2025-66478 has been rejected, but it is associated with CVE-2025- 55182.
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Vendor notices and references
- github.com/vercel-labs/fix-react2shell-next?tab=readme-ov-file
- nvd.nist.gov/vuln/detail/CVE-2025-55182
Description and required action as published by CISA. Full record at NVD.