When a Signature Check Fails Open: Inside the SAML Logic Behind CVE-2026-19490
A protocol-level look at the SAML signature-verification failure in CVE-2026-19490 affecting Citrix NetScaler ADC and Gateway.
🎯 Vulnerability: Web Security Vulnerability
💡 Defense Fix: Implement strict input validation, contextual output encoding, and enforce least-privilege authorization controls.