Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 5.3 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N | CNA (Meta) |
- CISA KEV Not listed.
- EPSS 0.62, the 99th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 11 Dec 2025, 20:20 UTC Published by the maintainers as a GitHub repository advisory
Sources
- GitHub Advisory Database: GHSA-925w-6v3x-g4j4
- OSV: GHSA-925w-6v3x-g4j4
- github.com/facebook/react/security/advisories/GHSA-925w-6v3x-g4j4
- nvd.nist.gov/vuln/detail/CVE-2025-55183
- github.com/facebook/react
- react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components
- www.facebook.com/security/advisories/cve-2025-55183