Critical severity9.1NVD Advisory· Published May 12, 2026· Updated May 16, 2026
CVE-2026-41103
CVE-2026-41103
Description
Incorrect implementation of authentication algorithm in Microsoft SSO Plugin for Jira & Confluence allows an unauthorized attacker to elevate privileges over a network.
Affected products
2Patches
Vulnerability mechanics
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41103nvdVendor Advisory
News mentions
8- Microsoft Patches 138 Vulnerabilities, Including DNS and Netlogon RCE FlawsThe Hacker News · May 13, 2026
- Patch Tuesday - May 2026Rapid7 Blog · May 13, 2026
- Patch Tuesday, May 2026 EditionKrebs on Security · May 12, 2026
- Microsoft May 2026 Patch Tuesday, (Tue, May 12th)SANS Internet Storm Center · May 12, 2026
- Microsoft May 2026 Patch Tuesday fixes 120 flaws, no zero-daysBleepingComputer · May 12, 2026
- Microsoft Patches 137 VulnerabilitiesSecurityWeek · May 12, 2026
- Microsoft’s May 2026 Patch Tuesday Addresses 118 CVEs (CVE-2026-41103)Tenable Blog · May 12, 2026
- May 2026 Patch Tuesday: 30 Critical Vulnerabilities Among 130 CVEsCrowdStrike Blog