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.

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Fixes

Solution

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Workaround

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History

Tue, 11 Aug 2026 14:00:00 +0000

Type Values Removed Values Added
First Time appeared Redhat jboss Enterprise Application Platform Expansion Pack
Vendors & Products Redhat jboss Enterprise Application Platform Expansion Pack

Tue, 11 Aug 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Tue, 11 Aug 2026 09:15:00 +0000

Type Values Removed Values Added
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.
Title Picketlink-federation: picketlink saml 2.0 auth bypass via missing assertions
First Time appeared Redhat
Redhat jboss Enterprise Application Platform
Redhat jbosseapxp
Weaknesses CWE-347
CPEs cpe:/a:redhat:jboss_enterprise_application_platform:7
cpe:/a:redhat:jboss_enterprise_application_platform:8
cpe:/a:redhat:jbosseapxp
Vendors & Products Redhat
Redhat jboss Enterprise Application Platform
Redhat jbosseapxp
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-08-11T08:49:44.388Z

Reserved: 2026-07-13T05:00:40.638Z

Link: CVE-2026-15556

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-11T09:17:12.687

Modified: 2026-08-11T09:17:12.687

Link: CVE-2026-15556

cve-icon Redhat

Severity : Important

Publid Date: 2026-08-11T05:54:53Z

Links: CVE-2026-15556 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-11T13:45:04Z

Weaknesses