CVE-2026-41103

{"id": "CVE-2026-41103", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "secure@microsoft.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 3.9}]}, "published": "2026-05-12T18:17:21.887", "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41103", "tags": ["Vendor Advisory"], "source": "secure@microsoft.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "secure@microsoft.com", "description": [{"lang": "en", "value": "CWE-303"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-Other"}]}], "descriptions": [{"lang": "en", "value": "Incorrect implementation of authentication algorithm in Microsoft SSO Plugin for Jira & Confluence allows an unauthorized attacker to elevate privileges over a network."}], "lastModified": "2026-05-16T02:07:46.933", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:confluence_saml_sso:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6C01FB1C-E5A4-4301-B254-4563DED756DE", "versionEndExcluding": "7.4.0"}, {"criteria": "cpe:2.3:a:microsoft:jira_saml_sso:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "800FC063-A44B-42A3-930A-AE4EE8D1F8C1", "versionEndExcluding": "1.3.3"}], "operator": "OR"}]}], "sourceIdentifier": "secure@microsoft.com"}