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net/url: Incorrect parsing of IPv6 host literals in net/url

🗓️ 25 Jun 2026 06:40:14Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 4 Views

The net/url.Parse function fails to validate IPv6 hosts, letting invalid URLs pass by ignoring garbage.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.8aarch64runc4:1.4.2-2.el9_8runc-4:1.4.2-2.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8ppc64lerunc4:1.4.2-2.el9_8runc-4:1.4.2-2.el9_8.ppc64le.rpm
Red Hat Enterprise Linux9.8s390xrunc4:1.4.2-2.el9_8runc-4:1.4.2-2.el9_8.s390x.rpm
Red Hat Enterprise Linux9.8x86_64runc4:1.4.2-2.el9_8runc-4:1.4.2-2.el9_8.x86_64.rpm
Red Hat Enterprise Linux9.8aarch64runc-debuginfo4:1.4.2-2.el9_8runc-debuginfo-4:1.4.2-2.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8ppc64lerunc-debuginfo4:1.4.2-2.el9_8runc-debuginfo-4:1.4.2-2.el9_8.ppc64le.rpm
Red Hat Enterprise Linux9.8s390xrunc-debuginfo4:1.4.2-2.el9_8runc-debuginfo-4:1.4.2-2.el9_8.s390x.rpm
Red Hat Enterprise Linux9.8x86_64runc-debuginfo4:1.4.2-2.el9_8runc-debuginfo-4:1.4.2-2.el9_8.x86_64.rpm
Red Hat Enterprise Linux9.8aarch64runc-debugsource4:1.4.2-2.el9_8runc-debugsource-4:1.4.2-2.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8ppc64lerunc-debugsource4:1.4.2-2.el9_8runc-debugsource-4:1.4.2-2.el9_8.ppc64le.rpm
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17 Jul 2026 16:43Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.5
EPSS0.00728
SSVC
4