Acceptance of Extraneous Untrusted Data With Trusted Data in Next.js - CVE-2026-94484
Published: October 2, 2026
Vulnerability identifier: #VU153127
CSH Severity: Low
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-94484
CWE-ID: CWE-349
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a persistent denial of service.
The vulnerability exists due to improper cache handling in the shared response cache for SSG/ISR rendering when handling a crafted request in an application that uses a root-level catch-all page with statically generated or incremental static regeneration routes. A remote attacker can send a crafted request to cause a persistent denial of service.
Affected software
Next.js
How to mitigate CVE-2026-94484
Install security update from vendor's website.
Next.js - addressed in versions 15.5.27, 16.3.8