CVE-2025-30218

April 2, 2025, 10:15 p.m.

1.7
Low

Description

Next.js is a React framework for building full-stack web applications. To mitigate CVE-2025-29927, Next.js validated the x-middleware-subrequest-id which persisted across multiple incoming requests. However, this subrequest ID is sent to all requests, even if the destination is not the same host as the Next.js application. Initiating a fetch request to a third-party within Middleware will send the x-middleware-subrequest-id to that third party. This vulnerability is fixed in 12.3.6, 13.5.10, 14.2.26, and 15.2.4.

Product(s) Impacted

Vendor Product Versions
Vercel
  • Next.js
  • 12.3.6, 13.5.10, 14.2.26, 15.2.4, <12.3.6

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a vercel next.js 12.3.6 / / / / / / /
a vercel next.js 13.5.10 / / / / / / /
a vercel next.js 14.2.26 / / / / / / /
a vercel next.js 15.2.4 / / / / / / /
a vercel next.js <12.3.6 / / / / / / /

References

https://github.com/vercel/next.js/security/advisories/GHSA-223j-4rm8-mrmf
https://vercel.com/changelog/cve-2025-30218-5DREmEH765PoeAsrNNQj3O

Tags

security-advisories@github.com
CWE-200
2025-04-02
CVE-2025-30218

CVSS Score

1.7 / 10

CVSS Data - 4.0

  • Attack Vector: NETWORK
  • Attack Complexity: HIGH
  • Attack Requirements: PRESENT
  • Privileges Required: NONE
  • User Interaction: NONE
  • Scope:
  • Confidentiality Impact: LOW
  • Integrity Impact: NONE
  • Availability Impact: NONE
  • Exploit Maturity: UNREPORTED

    • CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

    View Vector String

Timeline

Published: April 2, 2025, 10:15 p.m.
Last Modified: April 2, 2025, 10:15 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

security-advisories@github.com

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.