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CVE-2026-72844

🗓️ 20 Aug 2026 17:19:34Reported by VulnCheckType 
cve
 cve
🔗 web.nvd.nist.gov👁 3 Views

Lean 4 kernel admits ill-typed nested inductive via unchecked projection, yielding axiom-free proof of False.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
cvelist
Cvelist
CVE-2026-72844 Lean 4 Kernel Type Checking Bypass via Mismatched Structure Projections
20 Aug 202617:19
cvelist
euvd
EUVD
EUVD-2026-63487
20 Aug 202617:19
euvd
nvd
NVD
CVE-2026-72844
20 Aug 202618:16
nvd
ptsecurity
Positive Technologies
PT-2026-79074
20 Aug 202600:00
ptsecurity
Vulners
Node
OR
leanproverlean4Range04.32.2
leanproverlean4Match4.33.0-rc1
[
  {
    "vendor": "leanprover",
    "product": "lean4",
    "defaultStatus": "unaffected",
    "repo": "https://github.com/leanprover/lean4",
    "versions": [
      {
        "version": "0",
        "lessThan": "4.32.2",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "4.32.2",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.33.0-rc1",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  }
]

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20 Aug 2026 18:16Current
5.4Medium risk
Vulners AI Score5.4
CVSS 3.16.3
CVSS 46.8
3