{"data":{"id":"3eb6d5f9-d833-4ade-be68-effa707ff3a3","title":"CVE-2026-21521: Improper neutralization of escape, meta, or control sequences in Copilot allows an unauthorized attacker to disclose…","summary":"CVE-2026-21521 is classified as CWE-150, Improper Neutralization of Escape, Meta, or Control Sequences, in Copilot. The source states that an unauthorized attacker can disclose information over a network. NVD has not yet provided an assessment, and the affected software configurations list is not populated in the source.","solution":"N/A -- no mitigation discussed in source.","labels":["security"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-21521","publishedAt":"2026-01-22T23:15:57.823Z","cveId":"CVE-2026-21521","cweIds":["CWE-150"],"cvssScore":"7.4","cvssSeverity":"high","severity":"high","attackType":["other"],"issueType":"vulnerability","affectedPackages":null,"affectedPackageNames":null,"affectedPackageRefs":null,"affectedVendors":["Microsoft"],"affectedVendorsRaw":["Copilot"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":"Copilot information disclosure via improper neutralization of escape sequences","headlinePromptVersion":"h1","cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":"unknown","epssScore":0.00613,"epssCheckedAt":"2026-11-04T06:10:14.105Z","kevDateAdded":null,"advisoryAliases":["GHSA-mmfw-g245-wgx2"],"affectedPackagesSource":null,"affectedPackagesCheckedAt":"2026-11-04T00:12:41.676Z","patchAvailable":null,"disclosureDate":null,"fixReleasedAt":null,"daysToFix":null,"fixCheckedAt":null,"capecIds":null,"crossRefCount":0,"attackSophistication":"moderate","impactType":["confidentiality"],"aiComponentTargeted":"inference","llmSpecific":true,"classifierConfidence":0.8,"researchCategory":null,"atlasIds":null,"fixes":[]}}