CVE-2026-64643

Published: Lug 27, 2026 Last Modified: Lug 27, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,3
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A

Description

AI Translation Available

Next.js is a React framework for building full-stack web applications. In versions 12.0.0 through 15.5.20 and 16.0.0 through 16.2.10, Next.js applications using App Router, Server Actions (use server) or use cache endpoints can be disclosed bypassing any authentication on the pages where these endpoints are usually used. Server Action IDs can be disclosed to unauthenticated users via publicly served client artifacts (for example, static chunks containing action references). Affected users are applications using App Router and Server Actions. By itself, this disclosure is typically a recon/enumeration primitive; however, it can increase risk when combined with other weaknesses. This issue has been fixed in versions 15.5.21 and 16.2.11.

201

Insertion of Sensitive Information Into Sent Data

Draft
Common Consequences
Security Scopes Affected:
Confidentiality
Potential Impacts:
Read Files Or Directories Read Memory Read Application Data
Applicable Platforms
All platforms may be affected
View CWE Details
https://github.com/vercel/next.js/commit/1b0c3ae912a3ad925c60065cc8d55b070fa8bc…
https://github.com/vercel/next.js/commit/ff12a6124e1504f17b62de948b8a553fdecaef…
https://github.com/vercel/next.js/releases/tag/v15.5.21
https://github.com/vercel/next.js/releases/tag/v16.2.11
https://github.com/vercel/next.js/security/advisories/GHSA-955p-x3mx-jcvp