CVE-2026-41103 CRITICAL

CVE-2026-41103: Microsoft SSO Plugin for Jira & Confluence Elevation of Privilege Vulnerability

Vendor Microsoft
Product Microsoft Confluence SAML SSO plugin
Weakness CWE-303
Published May 12, 2026
Last update June 9, 2026
View on NVD All CVEs

CVSS base score

9.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

May 12, 2026 CVE published
June 9, 2026 Record updated