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golang.org/x/net/idna: golang: net/http: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing

🗓️ 20 Jul 2026 16:17:57Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 11 Views

Privilege escalation from faulty Punycode handling in idna; xn--example-.com becomes example.com.

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Red Hat Enterprise Linux9aarch64receptor1.6.6-1.el9apreceptor-1.6.6-1.el9ap.aarch64.rpm
Red Hat Enterprise Linux9ppc64lereceptor1.6.6-1.el9apreceptor-1.6.6-1.el9ap.ppc64le.rpm
Red Hat Enterprise Linux9s390xreceptor1.6.6-1.el9apreceptor-1.6.6-1.el9ap.s390x.rpm
Red Hat Enterprise Linux9x86_64receptor1.6.6-1.el9apreceptor-1.6.6-1.el9ap.x86_64.rpm
Red Hat Enterprise Linux10aarch64receptor1.6.6-1.el10apreceptor-1.6.6-1.el10ap.aarch64.rpm
Red Hat Enterprise Linux10ppc64lereceptor1.6.6-1.el10apreceptor-1.6.6-1.el10ap.ppc64le.rpm
Red Hat Enterprise Linux10s390xreceptor1.6.6-1.el10apreceptor-1.6.6-1.el10ap.s390x.rpm
Red Hat Enterprise Linux10x86_64receptor1.6.6-1.el10apreceptor-1.6.6-1.el10ap.x86_64.rpm

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02 Sep 2026 05:19Current
5.5Medium risk
Vulners AI Score5.5
CVSS 3.19.6
EPSS0.00692
SSVC
CWE-1289
internationalized domain namespunycode handlinghost spoofingprivilege escalationunix
11