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CVE-2026-44574 - Vulnerability Analysis

HighCVSS: 8.1

Last Updated: May 14, 2026

Next.js - Authorization Bypass

Published: May 13, 2026Updated: May 14, 2026Remote Exploitable

Overview

Next.js 15.4.0 to < 15.5.16 and 16.2.5 contains an authorization bypass caused by specially crafted query parameters altering dynamic route values, letting attackers access protected content without middleware checks, exploit requires crafted query parameters.

Severity & Score

Severity: High

CVSS Score: 8.1

EPSS Score: 2.8%(Probability of exploitation in next 30 days)

Impact

Attackers can bypass authorization to access protected content without proper checks, risking data exposure.

Mitigation

Update to versions 15.5.16 or 16.2.5 or later.

References

https://github.com/vercel/next.js/security/advisories/GHSA-492v-c6pp-mqqv

Social Media Activity(2 posts)

TheHackerWire

@thehackerwire

May 13, 2026

🟠 CVE-2026-44574 - High (8.1) Next.js is a React framework for building full-stack web applications. From 15.4.0 to before 15.5.16 and 16.2.5, applications that rely on middleware to protect dynamic routes can be vulnerable to authorization bypass. In affected deployments, spe... 🔗 https://www.thehackerwire.com/vulnerability/CVE-2026-44574/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

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TheHackerWire

@thehackerwire

May 13, 2026

View original post

GitHub Repositories(1 repo)

https://github.com/dwisiswant0/next-16.2.4-pocs

Related Resources

Details

CVE ID: CVE-2026-44574
Severity: High
CVSS Score: 8.1
Type: broken_access_control
Status: confirmed
EPSS: 2.8%
Social Posts: 2

CWE

CWE-288

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS Score

2.8%Probability of exploitation in the next 30 days