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CVE-2025-55182

CRITICALCISA KEV

10.0

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.

CVE Details

CVSS v3.1 Score10.0

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published12/3/2025

Last Modified12/10/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorMeta

ProductReact Server Components

Vulnerability NameMeta React Server Components Remote Code Execution Vulnerability

KEV Date Added2025-12-05

Remediation Due Date2025-12-12

Ransomware UseKnown

Affected Products

facebook:reactvercel:next.js

Weaknesses (CWE)

CWE-502

References

https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components(cve-assign@fb.com)

https://www.facebook.com/security/advisories/cve-2025-55182(cve-assign@fb.com)

http://www.openwall.com/lists/oss-security/2025/12/03/4(af854a3a-2127-422b-91ae-364da2661108)

https://news.ycombinator.com/item?id=46136026(af854a3a-2127-422b-91ae-364da2661108)

https://aws.amazon.com/blogs/security/china-nexus-cyber-threat-groups-rapidly-exploit-react2shell-vulnerability-cve-2025-55182/(134c704f-9b21-4f2e-91b3-4a467353bcc0)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-55182(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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