CVE-2025-67779
December 11, 2025
It was found that the fix addressing CVE-2025-55184 in React Server Components was incomplete and does not prevent a denial of service attack in a specific case. React Server Components versions 19.0.2, 19.1.3 and 19.2.2 are affected, allowing unsafe deserialization of payloads from HTTP requests to Server Function endpoints. This can cause an infinite loop that hangs the server process and may prevent future HTTP requests from being served.
Affected Packages
next (NPM):
Affected version(s) >=15.4.0-canary.0 <15.4.8Fix Suggestion:
Update to version 15.4.8react-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) =19.0.2 <19.0.3Fix Suggestion:
Update to version 19.0.3react-server-dom-webpack (NPM):
Affected version(s) =19.0.2 <19.0.3Fix Suggestion:
Update to version 19.0.3react-server-dom-webpack (NPM):
Affected version(s) >=19.2.0 <19.2.3Fix Suggestion:
Update to version 19.2.3next (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 19.2.3react-server-dom-webpack (NPM):
Affected version(s) >=19.0.0 <19.0.3Fix Suggestion:
Update to version 19.0.3next (NPM):
Affected version(s) >=15.1.0 <15.1.9Fix Suggestion:
Update to version 15.1.9react-server-dom-webpack (NPM):
Affected version(s) =19.1.3 <19.1.4Fix Suggestion:
Update to version 19.1.4react-server-dom-webpack (NPM):
Affected version(s) =19.2.2 <19.2.3Fix Suggestion:
Update to version 19.2.3react-server-dom-turbopack (NPM):
Affected version(s) =19.1.3 <19.1.4Fix Suggestion:
Update to version 19.1.4next (NPM):
Affected version(s) >=15.2.0-canary.0 <15.2.6Fix Suggestion:
Update to version 15.2.6react-server-dom-turbopack (NPM):
Affected version(s) >=19.0.0 <19.0.3Fix Suggestion:
Update to version 19.0.3react-server-dom-turbopack (NPM):
Affected version(s) =19.2.2 <19.2.3Fix Suggestion:
Update to version 19.2.3next (NPM):
Affected version(s) >=15.5.0 <15.5.7Fix Suggestion:
Update to version 15.5.7react-server-dom-parcel (NPM):
Affected version(s) =19.2.2 <19.2.3Fix Suggestion:
Update to version 19.2.3next (NPM):
Affected version(s) >=16.0.0-canary.0 <16.0.7Fix Suggestion:
Update to version 16.0.7react-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) =19.1.3 <19.1.4Fix Suggestion:
Update to version 19.1.4next (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-parcel (NPM):
Affected version(s) >=19.1.0 <19.1.4Fix Suggestion:
Update to version 19.1.4Related Resources (6)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
EPSS
Base Score:
0.09
