CVE-2026-41103 — CRITICAL (9.1)

Q: What is CVE-2026-41103?

CVE-2026-41103 is a vulnerability with a CVSS score of 9.1 (CRITICAL). Incorrect implementation of authentication algorithm in Microsoft SSO Plugin for Jira & Confluence allows an unauthorized attacker to elevate privileges over a network.

Q: How severe is CVE-2026-41103?

CVE-2026-41103 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2026-41103?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Confluence Saml Sso, Microsoft Jira Saml Sso.

Vulnerability Description

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

CVSS Score

9.1

CRITICAL

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

Affected Products

Vendor	Product	Versions
Microsoft	Confluence Saml Sso	< 7.4.0
Microsoft	Jira Saml Sso	< 1.3.3

Related Weaknesses (CWE)

CWE-303

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41103Vendor Advisory

FAQ

What is CVE-2026-41103?

CVE-2026-41103 is a vulnerability with a CVSS score of 9.1 (CRITICAL). Incorrect implementation of authentication algorithm in Microsoft SSO Plugin for Jira & Confluence allows an unauthorized attacker to elevate privileges over a network.

How severe is CVE-2026-41103?

CVE-2026-41103 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-41103?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Confluence Saml Sso, Microsoft Jira Saml Sso.