CVE-2025-55183
December 11, 2025
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-turbopack, and react-server-dom-webpack. A specifically crafted HTTP request sent to a vulnerable Server Function may unsafely return the source code of any Server Function. Exploitation requires the existence of a Server Function which explicitly or implicitly exposes a stringified argument.
Affected Packages
next (NPM):
Affected version(s) >=16.0.0-canary.0 <16.0.7Fix Suggestion:
Update to version 16.0.7react-server-dom-webpack (NPM):
Affected version(s) >=19.1.0 <19.1.3Fix Suggestion:
Update to version 19.1.3react-server-dom-parcel (NPM):
Affected version(s) >=19.1.0 <19.1.3Fix Suggestion:
Update to version 19.1.3react-server-dom-turbopack (NPM):
Affected version(s) >=19.1.0 <19.1.3Fix Suggestion:
Update to version 19.1.3react-server-dom-webpack (NPM):
Affected version(s) >=19.1.0 <19.1.4Fix Suggestion:
Update to version 19.1.4react-server-dom-turbopack (NPM):
Affected version(s) >=19.1.0 <19.1.4Fix Suggestion:
Update to version 19.1.4react-server-dom-parcel (NPM):
Affected version(s) >=19.1.0 <19.1.4Fix Suggestion:
Update to version 19.1.4next (NPM):
Affected version(s) >=14.3.0-canary.77 <15.0.5Fix Suggestion:
Update to version 15.0.5react-server-dom-turbopack (NPM):
Affected version(s) >=19.2.0 <19.2.3Fix Suggestion:
Update to version 19.2.3next (NPM):
Affected version(s) >=15.4.0-canary.0 <15.4.8Fix Suggestion:
Update to version 15.4.8next (NPM):
Affected version(s) >=15.5.0 <15.5.7Fix Suggestion:
Update to version 15.5.7react-server-dom-webpack (NPM):
Affected version(s) >=19.0.0 <19.0.3Fix Suggestion:
Update to version 19.0.3next (NPM):
Affected version(s) >=15.3.0-canary.0 <15.3.6Fix Suggestion:
Update to version 15.3.6react-server-dom-parcel (NPM):
Affected version(s) >=19.2.0 <19.2.3Fix Suggestion:
Update to version 19.2.3react-server-dom-webpack (NPM):
Affected version(s) >=19.2.0 <19.2.2Fix Suggestion:
Update to version 19.2.2react-server-dom-turbopack (NPM):
Affected version(s) >=19.2.0 <19.2.2Fix Suggestion:
Update to version 19.2.2next (NPM):
Affected version(s) >=15.1.0 <15.1.9Fix Suggestion:
Update to version 15.1.9react-server-dom-turbopack (NPM):
Affected version(s) >=19.0.0 <19.0.2Fix Suggestion:
Update to version 19.0.2react-server-dom-webpack (NPM):
Affected version(s) >=19.2.0 <19.2.3Fix Suggestion:
Update to version 19.2.3react-server-dom-parcel (NPM):
Affected version(s) >=19.2.0 <19.2.2Fix Suggestion:
Update to version 19.2.2react-server-dom-webpack (NPM):
Affected version(s) >=19.0.0 <19.0.2Fix Suggestion:
Update to version 19.0.2react-server-dom-turbopack (NPM):
Affected version(s) >=19.0.0 <19.0.3Fix Suggestion:
Update to version 19.0.3next (NPM):
Affected version(s) >=15.2.0-canary.0 <15.2.6Fix Suggestion:
Update to version 15.2.6Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
EPSS
Base Score:
22.78
