CVE-2026-44576

MEDIUM EPSS 16.2%
Published May 13, 20261mo ago · Modified Jun 17, 20261w ago
5.4 CVSS 3.1
Medium
Find Similar
Published May 13, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

Next.js is a React framework for building full-stack web applications. From 14.2.0 to before 15.5.16 and 16.2.5, applications using React Server Components can be vulnerable to cache poisoning when shared caches do not correctly partition response variants. Under affected conditions, an attacker can cause an RSC response to be served from the original URL and poison shared cache entries so later visitors receive component payloads instead of the expected HTML. This vulnerability is fixed in 15.5.16 and 16.2.5.

CVSS Details

Base Score
5.4
Exploitability
2.2
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:L
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Changed
Confidentiality None
Integrity Low
Availability Low

Threat Intelligence

EPSS Exploit Probability
16.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-436

Affected Products 2

VendorProductVersionRange
vercelnext.js*≥14.2.0  –  <15.5.16
vercelnext.js*≥16.0.0  –  <16.2.5

References 1

  • github.com https://github.com/vercel/next.js/security/advisories/GHSA-wfc6-r584-vfw7
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.