Vulnerability Details CVE-2025-55182
A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.278
EPSS Ranking 96.3%
CVSS Severity
CVSS v3 Score 10.0
Proposed Action
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.
Ransomware Campaign
Unknown
References
- https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components
- https://www.facebook.com/security/advisories/cve-2025-55182
- http://www.openwall.com/lists/oss-security/2025/12/03/4
- https://news.ycombinator.com/item?id=46136026
- https://aws.amazon.com/blogs/security/china-nexus-cyber-threat-groups-rapidly-exploit-react2shell-vulnerability-cve-2025-55182/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-55182
Products affected by CVE-2025-55182
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cpe:2.3:a:facebook:react:19.0.0
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cpe:2.3:a:facebook:react:19.1.0
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cpe:2.3:a:facebook:react:19.1.1
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cpe:2.3:a:facebook:react:19.2.0
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cpe:2.3:a:vercel:next.js:14.3.0
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cpe:2.3:a:vercel:next.js:15.0.0
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cpe:2.3:a:vercel:next.js:15.0.1
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cpe:2.3:a:vercel:next.js:15.0.2
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cpe:2.3:a:vercel:next.js:15.0.3
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cpe:2.3:a:vercel:next.js:15.0.4
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cpe:2.3:a:vercel:next.js:15.1.0
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cpe:2.3:a:vercel:next.js:15.1.1
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cpe:2.3:a:vercel:next.js:15.1.2
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cpe:2.3:a:vercel:next.js:15.1.3
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cpe:2.3:a:vercel:next.js:15.1.4
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cpe:2.3:a:vercel:next.js:15.1.5
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cpe:2.3:a:vercel:next.js:15.1.6
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cpe:2.3:a:vercel:next.js:15.1.7
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cpe:2.3:a:vercel:next.js:15.1.8
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cpe:2.3:a:vercel:next.js:15.2.0
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cpe:2.3:a:vercel:next.js:15.2.1
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cpe:2.3:a:vercel:next.js:15.2.2
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cpe:2.3:a:vercel:next.js:15.2.3
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cpe:2.3:a:vercel:next.js:15.2.4
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cpe:2.3:a:vercel:next.js:15.2.5
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cpe:2.3:a:vercel:next.js:15.3.0
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cpe:2.3:a:vercel:next.js:15.3.1
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cpe:2.3:a:vercel:next.js:15.3.2
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cpe:2.3:a:vercel:next.js:15.3.3
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cpe:2.3:a:vercel:next.js:15.3.4
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cpe:2.3:a:vercel:next.js:15.3.5
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cpe:2.3:a:vercel:next.js:15.4.0
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cpe:2.3:a:vercel:next.js:15.4.1
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cpe:2.3:a:vercel:next.js:15.4.2
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cpe:2.3:a:vercel:next.js:15.4.3
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cpe:2.3:a:vercel:next.js:15.4.4
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cpe:2.3:a:vercel:next.js:15.4.5
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cpe:2.3:a:vercel:next.js:15.4.6
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cpe:2.3:a:vercel:next.js:15.4.7
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cpe:2.3:a:vercel:next.js:15.5.0
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cpe:2.3:a:vercel:next.js:15.5.1
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cpe:2.3:a:vercel:next.js:15.5.2
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cpe:2.3:a:vercel:next.js:15.5.3
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cpe:2.3:a:vercel:next.js:15.5.4
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cpe:2.3:a:vercel:next.js:15.5.5
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cpe:2.3:a:vercel:next.js:15.5.6
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cpe:2.3:a:vercel:next.js:15.6.0
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cpe:2.3:a:vercel:next.js:16.0.0
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cpe:2.3:a:vercel:next.js:16.0.1
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cpe:2.3:a:vercel:next.js:16.0.2
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cpe:2.3:a:vercel:next.js:16.0.3
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cpe:2.3:a:vercel:next.js:16.0.4
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cpe:2.3:a:vercel:next.js:16.0.5
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cpe:2.3:a:vercel:next.js:16.0.6