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GO-2026-5026 Invoking failure to reject ASCII-only Punycode-encoded labels in golang.org/x/net/idna

🗓️ 22 May 2026 02:46:43Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 13 Views

Go idna library fails to reject punycode that decodes to ASCII, enabling privilege escalation.

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Refs
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MINI-4VMC-3WMH-CGRW
14 Aug 202614:32
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5 Jun 202616:51
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17 Aug 202601:30
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5 Jun 202613:05
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26 Aug 2026 10:42Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.19.6
EPSS0.00692
SSVC
13