CVE-2026-41103 Details
Description
Incorrect implementation of authentication algorithm in Microsoft SSO Plugin for Jira & Confluence allows an unauthorized attacker to elevate privileges over a network.
A vulnerability exists in the Microsoft SSO Plugin for Jira and Confluence due to an incorrect implementation of the authentication algorithm. This flaw allows an unauthorized attacker to elevate privileges by bypassing authentication and gaining access to these applications as a legitimate user. The vulnerability affects users over a network and could be exploited by sending a specially crafted SSO response during the login process, deceiving the system into accepting a forged identity.
Users can download the security update for the Microsoft Confluence SAML SSO plugin from the Microsoft Download Center. For the Microsoft JIRA SAML SSO plugin, the security update is available through the Microsoft Download Center or the Atlassian Marketplace.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 7, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41103 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-Other | Weakness Not in a Standard CWE Category | [email protected] |
| CWE-303 | Incorrect Implementation of Authentication Algorithm | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| microsoft confluence saml sso | < 7.4.0 |
CPE
Remediation
| |
| microsoft jira saml sso | < 1.3.3 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 16, 2026 | Initial Analysis | [email protected] |
| May 12, 2026 | New CVE Received | [email protected] |