Description
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.
CISA Known Exploited Vulnerability
Date added 2025-12-05 | Due date 2025-12-12
Known Ransomware Campaign(s)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Problem types
Deserialization of Untrusted Data (CWE-502)
Product status
19.0.0 (semver)
19.1.0 (semver)
19.2.0 (semver)
19.0.0 (semver)
19.1.0 (semver)
19.2.0 (semver)
19.0.0 (semver)
19.1.0 (semver)
19.2.0 (semver)
References
aws.amazon.com/...-react2shell-vulnerability-cve-2025-55182/
www.cisa.gov/...erabilities-catalog?field_cve=CVE-2025-55182
www.openwall.com/lists/oss-security/2025/12/03/4
news.ycombinator.com/item?id=46136026
www.facebook.com/security/advisories/cve-2025-55182
react.dev/...curity-vulnerability-in-react-server-components