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CVE-2025-67779

Published: Dec 11, 2025Updated: Dec 12, 2025 Sources: CVE List NVD GHSACWE-502
NVD MITRE
7.5CVSSHIGH
EPSS Score
18.9%
Top 3.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-502CWE-400

Affected Products

react-server-dom-parcelMeta
Library
OSS Libraries / web-framework
react-server-dom-turbopackMeta
Library
OSS Libraries / web-framework
react-server-dom-webpackMeta
Library
OSS Libraries / web-framework
reactfacebookCommunications
next.jsvercel
LibraryLibrary
OSS Libraries / web-framework
metacommercialUSOSS Librariesaka react-server-dom-webpack, react-server-dom-parcel, react-server-dom-turbopack
facebookcommercialUSCommunicationsaka meta, facebook inc.
vercelcommercialUSOSS Librariesaka vercel
and 3 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

4 techniques
Execution
Impact
Initial Access
View detailed technique mapping

References

https://www.facebook.com/security/advisories/cve-2025-67779
facebook.com
https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components
react.dev
https://github.com/facebook/react/security/advisories/GHSA-2m3v-v2m8-q956
github.com
and 3 more references View all →

Timeline

Published
Dec 11, 2025
Last Updated
Dec 12, 2025

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