CVE-2026-64647

Published: Lug 27, 2026 Last Modified: Lug 28, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,3
Source: [email protected]
Attack Vector: network
Attack Complexity: high
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, a server-side fetch with a request body may return a cached response body from a different request to the same URL but different body. Confidential data in the POST's response body would then leak to unauthorized requests. Though the request itself will not be deduped. This is only an issue when receiving request bodies with a content type charset other than UTF-8. For example, the UTF-16 byte sequences for 삃삃 and 섄섄 in the request body would share the same cache. This issue has been fixed in versions 15.5.21 and 16.2.11.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0051
Percentile
0,4th
Updated

Single Data Point

Only one EPSS measurement is available for this CVE. Trend analysis requires multiple data points over time.

116

Improper Encoding or Escaping of Output

Draft
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Confidentiality Availability Access Control
Potential Impacts:
Modify Application Data Execute Unauthorized Code Or Commands Bypass Protection Mechanism
Applicable Platforms
Technologies: Not Technology-Specific, AI/ML, Database Server, Web Server
Likelihood of Exploit: High
View CWE Details
https://github.com/vercel/next.js/commit/025bf4a5f7b47fb775…
https://github.com/vercel/next.js/commit/025bf4a5f7b47fb7758c4ebf1c931a61c451c0…
https://github.com/vercel/next.js/pull/96008
https://github.com/vercel/next.js/pull/96008
https://github.com/vercel/next.js/releases/tag/v15.5.21
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/releases/tag/v16.2.11
https://github.com/vercel/next.js/security/advisories/GHSA-…
https://github.com/vercel/next.js/security/advisories/GHSA-4633-3j49-mh5q