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

CVSS 9.1 · Critical EPSS 0.17% · P38

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProductVersion RangeStatus
MicrosoftMicrosoft Confluence SAML SSO plugin1.0.0< 7.4.0affected
MicrosoftMicrosoft JIRA SAML SSO plugin1.0.0< 1.3.3affected
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I. Basic Information for CVE-2026-41103

Vulnerability Information
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Vulnerability Title
Microsoft SSO Plugin for Jira & Confluence Elevation of Privilege Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Incorrect implementation of authentication algorithm in Microsoft SSO Plugin for Jira &amp; Confluence allows an unauthorized attacker to elevate privileges over a network.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
认证算法的不正确实现
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft SSO Plugin for Jira & Confluence 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft SSO Plugin for Jira & Confluence是美国微软（Microsoft）公司的一款专为 Atlassian 协作软件（Jira 和 Confluence 本地部署版）开发的单点登录（SSO）身份认证集成插件。 Microsoft SSO Plugin for Jira & Confluence存在安全漏洞。攻击者利用该漏洞可以提升权限。以下产品和版本受到影响：Microsoft JIRA SAML SSO plugin,Microsoft Confluence
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
MicrosoftMicrosoft Confluence SAML SSO plugin 1.0.0 ~ 7.4.0 -
MicrosoftMicrosoft JIRA SAML SSO plugin 1.0.0 ~ 1.3.3 -

II. Public POCs for CVE-2026-41103

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III. Intelligence Information for CVE-2026-41103

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Same Patch Batch · Microsoft · 2026-05-12 · 125 CVEs total

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CVE-2026-343298.8 HIGHMicrosoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
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CVE-2026-403708.8 HIGHSQL Server Remote Code Execution Vulnerability

Showing top 20 of 125 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same vendor: Microsoft
Same weakness: CWE-303

V. Comments for CVE-2026-41103

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