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Microsoft CVE-2026-41103

| EUVD-2026-29689 CRITICAL
Incorrect Implementation of Authentication Algorithm (CWE-303)
2026-05-12 microsoft GHSA-w9j2-m5wx-fqq4
9.1
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

1
CVE Published
May 12, 2026 - 16:59 nvd
CRITICAL 9.1

DescriptionNVD

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

Analysis

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

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CVE-2026-41103 vulnerability details – vuln.today

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