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html/template: golang: Go html/template: Cross-Site Scripting via pathological input

🗓️ 21 Sep 2026 07:05:42Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 1 Views

A flaw was found in the html/template component of Go (golang). Pathological inputs could prematurely close an unescaped forward slash ('/'), allowing an attacker to inject arbitrary content. This could lead to Cross-Site Scripting (XSS), where ma...

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ReporterTitlePublishedViews
Family
cve
CVE		CVE-2026-56858
13 Aug 202621:58
–cve
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.6aarch64osbuild-composer46.3-8.el8_6osbuild-composer-46.3-8.el8_6.aarch64.rpm
Red Hat Enterprise Linux8.6ppc64leosbuild-composer46.3-8.el8_6osbuild-composer-46.3-8.el8_6.ppc64le.rpm
Red Hat Enterprise Linux8.6s390xosbuild-composer46.3-8.el8_6osbuild-composer-46.3-8.el8_6.s390x.rpm
Red Hat Enterprise Linux8.6x86_64osbuild-composer46.3-8.el8_6osbuild-composer-46.3-8.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6aarch64osbuild-composer-core46.3-8.el8_6osbuild-composer-core-46.3-8.el8_6.aarch64.rpm
Red Hat Enterprise Linux8.6ppc64leosbuild-composer-core46.3-8.el8_6osbuild-composer-core-46.3-8.el8_6.ppc64le.rpm
Red Hat Enterprise Linux8.6s390xosbuild-composer-core46.3-8.el8_6osbuild-composer-core-46.3-8.el8_6.s390x.rpm
Red Hat Enterprise Linux8.6x86_64osbuild-composer-core46.3-8.el8_6osbuild-composer-core-46.3-8.el8_6.x86_64.rpm
Red Hat Enterprise Linux8.6aarch64osbuild-composer-core-debuginfo46.3-8.el8_6osbuild-composer-core-debuginfo-46.3-8.el8_6.aarch64.rpm
Red Hat Enterprise Linux8.6ppc64leosbuild-composer-core-debuginfo46.3-8.el8_6osbuild-composer-core-debuginfo-46.3-8.el8_6.ppc64le.rpm
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22 Sep 2026 06:38Current
CVSS 3.16.1
EPSS0.0031
SSVC
CWE-79
1