CVE-2026-15556

Description

A flaw was found in Picketlink's SP signature validation; a SAML response containing zero assertion elements matching the signature check can allow an attacker to forge a SAML response and auth as any principal with any roles on the protected application.

CVSS Vector

References

• https://access.redhat.com/errata/RHSA-2026:53644
• https://access.redhat.com/security/cve/CVE-2026-15556
• https://bugzilla.redhat.com/show_bug.cgi?id=2483121