Vulnerability in Meta React-server-dom-parcel
CVE-2025-55183
An information leak vulnerability exists in specific configurations of React Server Components versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1, including the following packages: react-server-dom-parcel, react-server-dom-t…
EPSS: 0.263 (96.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Meta React-server-dom-parcel — versions 19.0.0, 19.1.0, 19.2.0
- Meta React-server-dom-turbopack — versions 19.0.0, 19.1.0, 19.2.0
- Meta React-server-dom-webpack — versions 19.0.0, 19.1.0, 19.2.0
Public proof-of-concept exploits
References
- www.facebook.com/security/advisories/cve-2025-55183 (x_refsource_CONFIRM)
- react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-s… (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2025-55183?
- CVE-2025-55183 is a medium-severity vulnerability in Meta React-server-dom-parcel. CVSS score: 5.3/10. Published 2025-12-11.
- How severe is CVE-2025-55183?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2025-55183 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.