CVE-2025-67779

Published: Dec 11, 2025Updated: Dec 12, 2025 Sources: CVE List NVD GHSACWE-502

7.5HIGH

NVD MITRE

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.

No summary for this CVE yet.

CVSS Vector Breakdown

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

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Weaknesses

CWE-502 CWE-400

Affected Products

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

4 techniques

Execution

Impact

Initial Access

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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 →

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