CVE
GHSA-mwv6-3258-q52c
Next Vulnerable to Denial of Service with Server Components
A vulnerability affects certain React packages for versions 19.0.0, 19.0.1, 19.1.0, 19.1.1, 19.1.2, 19.2.0, and 19.2.1 and frameworks that use the affected packages, including Next.js 15.x and 16.x using the App Router. The issue is tracked upstream as CVE-2025-55184.
A malicious HTTP request can be crafted and sent to any App Router endpoint that, when deserialized, can cause the server process to hang and consume CPU. This can result in denial of service in unpatched environments.
Package Versions Affected
Package Version
patch Availability
No items found.
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Fix Without Upgrading
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CVSS Version
Severity
Base Score
CVSS Version
Score Vector
C
H
U
-
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
C
H
U
7.5
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Related Resources
No items found.
References
https://github.com/vercel/next.js/security/advisories/GHSA-mwv6-3258-q52c, https://github.com/vercel/next.js, https://nextjs.org/blog/security-update-2025-12-11, https://www.cve.org/CVERecord?id=CVE-2025-55184
Basic Information
Ecosystem
