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CVE-2026-72844: Access of Resource Using Incompatible Type

🗓️ 20 Aug 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com👁 8 Views

Type confusion in Lean 4 kernel via unmet type checks in inductive applications allows False.

Related
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-72844
22 Aug 202619:00
–circl
cve
CVE
CVE-2026-72844
20 Aug 202617:19
–cve
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
kitploit
Kitploit
lean-cve-poc
20 Oct 202603:22
–kitploit
mend
Mend
CVE-2026-72844
20 Aug 202617:19
–mend
nvd
NVD
CVE-2026-72844
20 Aug 202618:16
–nvd
ptsecurity
Positive Technologies
PT-2026-79074
20 Aug 202600:00
–ptsecurity
vulnrichment
Vulnrichment
CVE-2026-72844 Lean 4 Kernel Type Checking Bypass via Mismatched Structure Projections
20 Aug 202617:19
–vulnrichment

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24 Sep 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.16.3
CVSS 46.8
EPSS0.00176
SSVC
8