CVE-2026-15556

Picketlink-federation: picketlink saml 2.0 auth bypass via missing assertions

State: Published
Severity: 8.1 High
Published: Aug 11, 2026
Updated: Oct 26, 2026
Reserved: Jul 13, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	8.1 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N	redhat

Weaknesses

CWE-347 Improper Verification of Cryptographic Signature

Affected Products

Product	Versions
Red Hat JBoss Enterprise Application Platform 7.4.25Red Hat
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat	0:2.16.0-22.redhat_00057.1.el7eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat	0:2.3.14-11.SP11_redhat_00001.1.el7eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat	0:1.5.26-2.Final_redhat_00001.1.el7eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat	0:2.18.8-1.redhat_00003.1.el7eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat	0:2.18.8-1.redhat_00003.1.el7eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat	0:2.18.8-1.redhat_00003.1.el7eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat	0:2.18.8-1.redhat_00003.1.el7eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat	0:2.18.8-1.redhat_00003.1.el7eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat	0:2.18.8-1.redhat_00003.1.el7eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat	0:5.0.31-3.SP2_redhat_00001.1.el7eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat	0:1.10.0-46.Final_redhat_00044.1.el7eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat	0:4.1.135-1.Final_redhat_00001.1.el7eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat	0:4.1.135-1.Final_redhat_00001.1.el7eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat	0:2.5.5-30.SP12_redhat_00020.1.el7eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat	0:2.5.5-24.SP12_redhat_00016.1.el7eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat	0:2.2.40-2.SP3_redhat_00001.1.el7eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat	0:7.4.25-2.GA_redhat_00001.1.el7eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8Red Hat	0:2.16.0-22.redhat_00057.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8Red Hat	0:2.3.14-11.SP11_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8Red Hat	0:1.5.26-2.Final_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8Red Hat	0:2.18.8-1.redhat_00003.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8Red Hat	0:2.18.8-1.redhat_00003.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8Red Hat	0:2.18.8-1.redhat_00003.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8Red Hat	0:2.18.8-1.redhat_00003.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8Red Hat	0:2.18.8-1.redhat_00003.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8Red Hat	0:2.18.8-1.redhat_00003.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8Red Hat	0:5.0.31-3.SP2_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8Red Hat	0:1.10.0-46.Final_redhat_00044.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8Red Hat	0:4.1.135-1.Final_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8Red Hat	0:4.1.135-1.Final_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8Red Hat	0:2.5.5-30.SP12_redhat_00020.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8Red Hat	0:2.5.5-24.SP12_redhat_00016.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8Red Hat	0:2.2.40-1.SP3_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8Red Hat	0:7.4.25-2.GA_redhat_00001.1.el8eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9Red Hat	0:2.16.0-22.redhat_00057.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9Red Hat	0:2.3.14-11.SP11_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9Red Hat	0:1.5.26-2.Final_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9Red Hat	0:2.18.8-1.redhat_00003.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9Red Hat	0:2.18.8-1.redhat_00003.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9Red Hat	0:2.18.8-1.redhat_00003.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9Red Hat	0:2.18.8-1.redhat_00003.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9Red Hat	0:2.18.8-1.redhat_00003.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9Red Hat	0:2.18.8-1.redhat_00003.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9Red Hat	0:5.0.31-3.SP2_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9Red Hat	0:1.10.0-46.Final_redhat_00044.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9Red Hat	0:4.1.135-1.Final_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9Red Hat	0:4.1.135-1.Final_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9Red Hat	0:2.5.5-30.SP12_redhat_00020.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9Red Hat	0:2.5.5-24.SP12_redhat_00016.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9Red Hat	0:2.2.40-1.SP3_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9Red Hat	0:7.4.25-2.GA_redhat_00001.1.el9eap and laterNot affected
Red Hat JBoss Enterprise Application Platform 7Red Hat
Red Hat JBoss Enterprise Application Platform 8Red Hat
Red Hat JBoss Enterprise Application Platform Expansion PackRed Hat

References

RHSA-2026:53644vendor-advisory
RHSA-2026:53645vendor-advisory
RHSA-2026:53646vendor-advisory
RHSA-2026:53806vendor-advisory
https://access.redhat.com/security/cve/CVE-2026-15556vdb-entry
RHBZ#2483121issue-tracking

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