CVE-2026-41103 json
Microsoft SSO Plugin for Jira & Confluence Elevation of Privilege Vulnerability
published 2026-05-12 5 mo ago modified 2026-10-26 13 d ago also EUVD-2026-29689
- cvss
- 9.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 5.4%
- EPSS 5.4% chance of exploitation in 30 days, percentile 92%
- public exploits
- 0
- none known
Summary
Incorrect implementation of authentication algorithm in Microsoft SSO Plugin for Jira & Confluence allows an unauthorized attacker to elevate privileges over a network.
Patch / fix
- Microsoft Microsoft Confluence SAML SSO plugin 7.4.0
- Microsoft Microsoft JIRA SAML SSO plugin 1.3.3
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 6 mo ago
Exploit prediction
5.38% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.1 | 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 |
| CNA | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
Affected products
- Microsoft Microsoft Confluence SAML SSO plugin
- Microsoft Microsoft JIRA SAML SSO plugin
Classification
- Weakness
-
- CWE-303 Incorrect Implementation of Authentication Algorithm
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2026-41103
vendor-advisory, patch
Sources
- CVE List CVE-2026-41103
- NVD CVE-2026-41103
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