Vulnerability Report

CVE-2025-55184

Title: Vercel Next.Js

DoS

Proof Of Concept

PoC Available for CVE-2025-55184

CWE Category CWE-502
Published Date Dec 11, 2025
Modified Date Dec 15, 2025
Exploit Status Available
Score 7.5 CVSS v3.1
Exploit Probability (EPSS)
41.24%

Vulnerability Summary

CVE-2025-55184: 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.

Impacted Vendors

V
vercel 1
K
kanopi 1
Z
zeit 1
F
facebook 1

Reference Links

https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components https://www.facebook.com/security/advisories/cve-2025-55184 https://github.com/KingHacker353/CVE-2025-55184
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2025-55184 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/williavs/nextjs-security-update
View Code
GitHub https://github.com/ejpir/CVE-2025-55184
View Code
GitHub https://github.com/hans362/CVE-2025-55184-poc
View Code
MODIFIED

Vulnerability data or affected products updated.

MODIFIED

Vulnerability data updated via NVD.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.