CVE-2025-55182
10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Meta | react-server-dom-webpack | 19.0.0 <= 19.0.0 | affected |
| Meta | react-server-dom-webpack | 19.1.0 <= 19.1.1 | affected |
| Meta | react-server-dom-webpack | 19.2.0 <= 19.2.0 | affected |
| Meta | react-server-dom-turbopack | 19.0.0 <= 19.0.0 | affected |
| Meta | react-server-dom-turbopack | 19.1.0 <= 19.1.1 | affected |
| Meta | react-server-dom-turbopack | 19.2.0 <= 19.2.0 | affected |
| Meta | react-server-dom-parcel | 19.0.0 <= 19.0.0 | affected |
| Meta | react-server-dom-parcel | 19.1.0 <= 19.1.1 | affected |
| Meta | react-server-dom-parcel | 19.2.0 <= 19.2.0 | affected |
Weaknesses
- Deserialization of Untrusted Data (CWE-502)
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: active
- Automatable: yes
- Technical Impact: total
Additional References
- 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
CVE Program Container
Additional References
- http://www.openwall.com/lists/oss-security/2025/12/03/4
- https://news.ycombinator.com/item?id=46136026
References
- https://www.facebook.com/security/advisories/cve-2025-55182
- https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components
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