CVE-2026-41103CWE-303

Microsoft SSO Plugin for Jira & Confluence Elevation of Privilege Vulnerability

Critical · published May 12, 2026

CVSS v3.1
9.1
EPSS
1%
Percentile
56.1
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00798 · 56.1th percentile
Weakness
CWE-303 · Incorrect Implementation of Authentication Algorithm
Published
2026-05-12T16:59Z
EPSS history
Timeline
  • 12 MAY 16:59Z
    Microsoft SSO Plugin for Jira & Confluence Elevation of Privilege Vulnerability
    cvelistv5