Severity:
CRITICAL RISK
(10.0)
Authentication Bypass via Spoofed Forwarded Headers (CWE-290) in Traefik ForwardAuth and Snippet Middleware
CVE-2026-39858
Published:
Apr 30, 2026
Status:
Analyzed
Summary
Affected Context
Exploit Preconditions
Why This Happens
Potential Impact
General Mitigation Guidance
How Teams Detect Issues Like This
Frequently Asked Questions
Source
NDV
Recent Vulnerabilities
CWE-284;CWE-434
(7.3)
Unrestricted File Upload (CWE-434) via Engine Handler exec in MindsDB BYOM Integration
Remote Code Execution and Arbitrary File Upload
May 3, 2026
CWE-287
(7.3)
Improper Authentication (CWE-287) in JwtAuthenticationTokenFilter of yudao-cloud Ruoyi-Vue-Pro
Authentication Bypass / Unauthorized Access
May 3, 2026
