CVE-2026-15556

high Red Hat
CVSS v3 Base Score
8.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
EPSS Score
0.2%
Exploitation probability in 30 days
Top 92% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
None
Published: August 11, 2026 (26 days ago)
Last Modified: August 11, 2026
Vendor: Red Hat
Source: REDHAT

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.

CWE

CWE-347

Affected Products

Red Hat JBoss Enterprise Application Platform 7Red Hat JBoss Enterprise Application Platform 8Red Hat JBoss Enterprise Application Platform Expansion Pack

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov