CVE Catalog

CVE-2026-21391

CriticalCVSS 9.5
Published: Updated: Translated: NVD NIST

Summary

An improper validation vulnerability exists in PingAM where a well-crafted request allows arbitrary or protected ID Token claims to be set or overridden. In certain configurations this could allow an attacker to bypass authentication controls via spoofing, leading to privilege escalation or impersonation.

Risk Assessment

An attacker can bypass authentication controls and impersonate another user, gaining unauthorized access or elevated privileges. The risk is high in identity federation environments.

Recommendation

Apply available security updates for PingAM. Verify ID Token claim validation configuration and restrict the ability to override claims.

Related vulnerabilities

Original NVD description (English source)

An improper validation vulnerability exists within PingAM where a well-crafted request allows arbitrary or protected ID Token claims to be set or overridden. In certain configurations this could allow an attacker to bypass authentication controls via spoofing leading to privilege escalation or impersonation.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS