CVE-2026-41103CRITICAL 9.1EPSS p91.3%

CVE-2026-41103CVE-2026-41103

Description

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

Scoring

CVSS 3.19.1 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS5.09% probability of exploitation · percentile 91.3% · 2026-06-18T12:00:27Z
Published2026-05-12
Last modified2026-05-16

Underlying weaknesses· 1

CWE-303

References

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

1

TypeTargetConfidenceTier
WeaknessIncorrect Implementation of Authentication Algorithmcwe-3030%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.