Information disclosure in Next.js - CVE-2025-30218
Published: April 3, 2025
Vulnerability identifier: #VU106922
CSH Severity: Low
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-30218
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to software may leak the "x-middleware-subrequest-id" to a third party. A remote attacker with control over the third-party server can obtain the header value and use it to bypass authentication.
Affected software
Next.js
Event Processing
Event Processing
How to mitigate CVE-2025-30218
Install updates from vendor's website.
Next.js - addressed in versions 12.3.6, 13.5.10, 14.2.26, 15.2.4
Event Processing - update to 1.4.5
Event Processing - update to 1.4.5