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Description

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

PUBLISHED Reserved 2026-04-16 | Published 2026-05-12 | Updated 2026-05-20 | Assigner microsoft




CRITICAL: 9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C

Problem types

CWE-303: Incorrect Implementation of Authentication Algorithm

Product status

1.0.0 (custom) before 7.4.0
affected

1.0.0 (custom) before 1.3.3
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41103 (Microsoft SSO Plugin for Jira & Confluence Elevation of Privilege Vulnerability) vendor-advisory patch

cve.org (CVE-2026-41103)

nvd.nist.gov (CVE-2026-41103)

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