next-14.2.21.tgz: 2 vulnerabilities (highest severity is: 9.1)

[mend-bolt-for-github]

Vulnerable Library - next-14.2.21.tgz

The React Framework

Library home page: https://registry.npmjs.org/next/-/next-14.2.21.tgz

Path to dependency file: /playground/package.json

Path to vulnerable library: /playground/package.json

Found in HEAD commit: 2c2e4a13b710ceb8f65cd32664895e4278834389

Vulnerabilities

Vulnerability	Severity	CVSS	Dependency	Type	Fixed in (next version)	Remediation Possible**
CVE-2025-29927	Critical	9.1	next-14.2.21.tgz	Direct	14.2.25	❌
CVE-2025-48068	Medium	4.7	next-14.2.21.tgz	Direct	14.2.30	❌

**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation

Details

CVE-2025-29927

Vulnerable Library - next-14.2.21.tgz

The React Framework

Library home page: https://registry.npmjs.org/next/-/next-14.2.21.tgz

Path to dependency file: /playground/package.json

Path to vulnerable library: /playground/package.json

Dependency Hierarchy:

• ❌ next-14.2.21.tgz (Vulnerable Library)

Found in HEAD commit: 2c2e4a13b710ceb8f65cd32664895e4278834389

Found in base branch: develop

Vulnerability Details

Next.js is a React framework for building full-stack web applications. Prior to 14.2.25 and 15.2.3, it is possible to bypass authorization checks within a Next.js application, if the authorization check occurs in middleware. If patching to a safe version is infeasible, it is recommend that you prevent external user requests which contain the x-middleware-subrequest header from reaching your Next.js application. This vulnerability is fixed in 14.2.25 and 15.2.3.

Publish Date: 2025-03-21

URL: CVE-2025-29927

CVSS 3 Score Details (9.1)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-f82v-jwr5-mffw

Release Date: 2025-03-21

Fix Resolution: 14.2.25

Step up your Open Source Security Game with Mend here

CVE-2025-48068

Vulnerable Library - next-14.2.21.tgz

The React Framework

Library home page: https://registry.npmjs.org/next/-/next-14.2.21.tgz

Path to dependency file: /playground/package.json

Path to vulnerable library: /playground/package.json

Dependency Hierarchy:

• ❌ next-14.2.21.tgz (Vulnerable Library)

Found in HEAD commit: 2c2e4a13b710ceb8f65cd32664895e4278834389

Found in base branch: develop

Vulnerability Details

Summary This vulnerability is similar to CVE-2018-14732. When running a Next.js server locally (e.g. through "npm run dev"), the WebSocket server is vulnerable to the Cross-site WebSocket hijacking (CSWSH) attack. and a bad actor can access the source code of client components, if a user was to visit a malicious link while having the Next.js dev server running. Impact If a user is running a Next.js server locally (e.g. "npm run dev"), and they were to browse to a malicious website, the malicious website may be able to access the source code of the Next.js app. This vulnerability only affects applications making use of App Router. Note: App Router was experimental requiring "experimental.appDir = true" in versions ">=13.0.0" to "<13.4".

Publish Date: 2025-05-30

URL: CVE-2025-48068

CVSS 3 Score Details (4.7)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Changed
• Impact Metrics:
  • Confidentiality Impact: Low
  • Integrity Impact: None
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Release Date: 2025-05-30

Fix Resolution: 14.2.30

Step up your Open Source Security Game with Mend here