CVE-2026-41103

FAUCET Score

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

First published: May 12, 2026Last modified: May 12, 2026

Impacted Technologies

Vendor	Product	Version(s)	CPE
		< 7.4.0CPE matchmatch criteria	cpe:2.3:a:microsoft:confluence_saml_sso::::::::
		< 1.3.3CPE matchmatch criteria	cpe:2.3:a:microsoft:jira_saml_sso::::::::

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

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 Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

Exploitability Score

3.9

Impact Score

5.2

CvssVersion

3.1

Exploit Intelligence

EPSS Score

5.38%

Probability of exploitation in next 30 days

EPSS Percentile

91.8%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0538 is in the 86th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

microsoftpatch availablevia msrc

Product: Microsoft JIRA SAML SSO pluginFixed in: 1.3.3

View patch

microsoftpatch availablevia msrc

Product: Microsoft Confluence SAML SSO pluginFixed in: 7.4.0

View patch

microsoftvendor investigatingvia nvd_reference

View patch

Vendor Advisories (1)

microsoft2026-May/CVE-2026-41103Critical

Microsoft SSO Plugin for Jira & Confluence Elevation of Privilege Vulnerability

May 12, 2026

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2026-41103

Vendor Advisory