CVE-2026-41103: Microsoft Confluence SAML SSO

Critical severity, CVSS 9.1. EPSS: 0.8% chance of exploitation in the next 30 days.

Incorrect implementation of authentication algorithm in Microsoft SSO Plugin for Jira & Confluence allows an unauthorized attacker to elevate privileges over a network.

Affected products

• Microsoft Confluence SAML SSO: before 7.4.0 (fixed in 7.4.0)
• Microsoft Jira SAML SSO: before 1.3.3 (fixed in 1.3.3)

Published 2026-05-12. Last modified 2026-06-17.