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CLEANSTART-2026-ZA04816 When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash

🗓️ 15 Oct 2026 00:41:50Reported by GoogleType 
osv-cleanstart
 osv-cleanstart
🔗 osv.dev👁 6 Views

Double-free of C memory in cgo DNS resolver via long CNAME response leads to crash.

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15 Oct 2026 01:00Current
7.1High risk
Vulners AI Score7.1
CVSS 3.17.5
EPSS0.00813
6