CVE•Published 2025-12-11•Modified 2026-10-07•2 articles on news•4 live references•NVD data
CVE-2025-55184Facebook · React
Vulnerability data via NVD (ingested)
CVSS v3.1
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS percentile
99
Exploit Prediction Scoring System · top 1% of all CVEs
Weaknesses (CWE)
Description
A pre-authentication denial of service vulnerability exists in 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-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints, which can cause an infinite loop that hangs the server process and may prevent future HTTP requests from being served.
Timeline
Published 2025-12-11
Modified 2026-10-07
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2025-55184Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Facebook React"All exposed Facebook React instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"React"HTTP body or banner mentions "React" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2025-55184Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2025-55184Censys host search filtered to this CVE id.
grep.app
CVE-2025-55184Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2025-55184GitHub code search for direct mentions.
Google dork
"CVE-2025-55184" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (8)
CVE-2025-551848 repos
bountyyfi/lonkeroRust
Lonkero - Wraps around your attack surface. Professional-grade scanner for real penetration testing. Fast. Modular. Rust.
BenIsenstein/pgonrailsShell
Self-hosted Supabase. Amazing developer experience. Build and self-host on Railway and beyond.
burakeregar/react-rsc-vuln-scannerJavaScript
cybertechajju/CVE-2025-55184-POC-ExpolitPython
Alcatecablee/Neurolint-CLIJavaScript
theori-io/reactguardPython
ReactGuard provides framework- and vulnerability-detection tooling for CVE-2025-55182 (React2Shell)
opendr-io/causalityJupyter Notebook
The difference between exploitation prediction and detection is akin to the difference between detecting a missile launch or a detonation. Every avoided exploitation cycle saves hu…
staruhub/HealthappTypeScript
One lightweight health app