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CLEANSTART-2026-WJ46547 When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash

🗓️ 30 Sep 2026 20:20:20Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 6 Views

Double-free in the crane package cgo DNS resolver allows a crash via long CNAME responses.

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01 Oct 2026 03:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.5
EPSS0.00813
6