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ip-address: isInSubnet() and isHostInSubnet() compare addresses of different families as if they shared an address space, allowing an allowlist check to admit an address outside its range

🗓️ 29 Sep 2026 23:46:52Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 4 Views

Cross-family comparisons in isInSubnet() and isHostInSubnet() allow bypass of allowlists.

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29 Sep 2026 23:46Current
5.9Medium risk
Vulners AI Score5.9
CVSS 46.3
EPSS0.0037
SSVC
4