CVE-2026-15556

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 v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:53644
https://access.redhat.com/errata/RHSA-2026:53806
https://access.redhat.com/security/cve/CVE-2026-15556
https://bugzilla.redhat.com/show_bug.cgi?id=2483121

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-11 09:17

Updated : 2026-08-24 12:16

NVD link : CVE-2026-15556

Mitre link : CVE-2026-15556

CVE.ORG link : CVE-2026-15556

JSON object : View

Products Affected

No product.

CWE

CWE-347

Improper Verification of Cryptographic Signature

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