Executive brief
Picketlink Federation is an identity and access management component used to handle SAML-based single sign-on in enterprise applications. A critical flaw in the unsolicited response handler allows attackers to forge SAML assertions without verification, enabling them to impersonate any user and gain unauthorized access to protected resources, systems, and sensitive data.
Technical details
The vulnerability is an authentication bypass in Picketlink Federation's SAML unsolicited response handler, which fails to verify or validate forged SAML assertions. An unauthenticated attacker can craft malicious SAML responses to impersonate any principal in any role without possessing valid credentials or signing keys. The flaw affects the SAML assertion processing logic and requires network access to the affected service, with no authentication or user interaction prerequisite. An attacker can achieve complete authentication bypass, leading to unauthorized access, privilege escalation, and information disclosure. Patches are expected from Red Hat through their security advisory channels.
Affected products
- Red Hat Picketlink Federation
Timeline
- 2026-08-11: disclosed