{"data":{"id":"9cbf40c3-8110-4b62-9891-43006fe24914","title":"CVE-2026-85887: Incorrect permission assignment for critical resource in M365 Copilot allows an authorized attacker to disclose informat","summary":"A flaw in Microsoft 365 Copilot's permission settings allows someone with authorized access to improperly view sensitive information across a network. The issue stems from incorrect assignment of permissions (access rules) to a critical resource (important data or system component), meaning the AI tool isn't properly restricting who can see what.","solution":"N/A -- no mitigation discussed in source.","labels":["security"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-85887","publishedAt":"2026-09-18T00:17:47.920Z","cveId":"CVE-2026-85887","cweIds":["CWE-732"],"cvssScore":"7.7","cvssSeverity":"high","severity":"high","attackType":["data_extraction"],"issueType":"vulnerability","affectedPackages":null,"affectedVendors":["Microsoft"],"affectedVendorsRaw":["Microsoft M365 Copilot"],"classifierModel":"claude-haiku-4-5-20251001","classifierPromptVersion":"v3","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","attackVector":"network","attackComplexity":"low","privilegesRequired":"low","userInteraction":"none","exploitMaturity":"unknown","epssScore":0,"patchAvailable":null,"disclosureDate":"2026-09-18T00:17:47.920Z","capecIds":["CAPEC-1"],"crossRefCount":0,"attackSophistication":"moderate","impactType":["confidentiality"],"aiComponentTargeted":"api","llmSpecific":true,"classifierConfidence":0.85,"researchCategory":null,"atlasIds":null}}