{"data":{"id":"59bfbe18-c170-4186-9275-4ac68d7ba97f","title":"CVE-2026-26164: Improper neutralization of special elements in output used by a downstream component ('injection') in M365 Copilot…","summary":"CVE-2026-26164 is an improper neutralization of special elements in output used by a downstream component ('injection'), classified as CWE-74, in M365 Copilot. The source states that an unauthorized attacker can disclose information over a network. NVD has not yet provided an assessment, and the record was published and last modified on 05/07/2026.","solution":"N/A -- no mitigation discussed in source.","labels":["security"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-26164","publishedAt":"2026-05-07T22:16:33.773Z","cveId":"CVE-2026-26164","cweIds":["CWE-74"],"cvssScore":"7.5","cvssSeverity":"high","severity":"high","attackType":["prompt_injection"],"issueType":"vulnerability","affectedPackages":null,"affectedPackageNames":null,"affectedPackageRefs":null,"affectedVendors":["Microsoft"],"affectedVendorsRaw":["M365 Copilot"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":"M365 Copilot injection flaw allows unauthorized information disclosure","headlinePromptVersion":"h1","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","attackVector":"network","attackComplexity":"low","privilegesRequired":"none","userInteraction":"none","exploitMaturity":"unknown","epssScore":0.00799,"epssCheckedAt":"2026-11-10T12:15:57.908Z","kevDateAdded":null,"advisoryAliases":["GHSA-qvcj-rgrx-wm72"],"affectedPackagesSource":null,"affectedPackagesCheckedAt":"2026-11-10T12:16:16.685Z","patchAvailable":null,"disclosureDate":"2026-05-07T22:16:33.773Z","fixReleasedAt":null,"daysToFix":null,"fixCheckedAt":null,"capecIds":null,"crossRefCount":0,"attackSophistication":"moderate","impactType":["confidentiality"],"aiComponentTargeted":"plugin","llmSpecific":true,"classifierConfidence":0.85,"researchCategory":null,"atlasIds":["AML.T0051"],"fixes":[]}}