Описание
Actions which insert URLs into the content attribute of HTML meta tags are not escaped. This can allow XSS if the meta tag also has an http-equiv attribute with the value "refresh". A new GODEBUG setting has been added, htmlmetacontenturlescape, which can be used to disable escaping URLs in actions in the meta content attribute which follow "url=" by setting htmlmetacontenturlescape=0.
An input escaping flaw has been discovered in the golang html/template module. Actions which insert URLs into the content attribute of HTML meta tags are not escaped. This can allow XSS if the meta tag also has an http-equiv attribute with the value "refresh". A new GODEBUG setting has been added, htmlmetacontenturlescape, which can be used to disable escaping URLs in actions in the meta content attribute which follow "url=" by setting htmlmetacontenturlescape=0.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| OpenShift Service Mesh 2 | openshift-golang-builder-container | Fix deferred | ||
| OpenShift Service Mesh 3 | openshift-golang-builder-container | Fix deferred | ||
| Red Hat Enterprise Linux 10 | golang | Fix deferred | ||
| Red Hat Enterprise Linux 8 | go-toolset:rhel8/golang | Fix deferred | ||
| Red Hat Enterprise Linux 9 | golang | Fix deferred | ||
| Red Hat Enterprise Linux AI (RHEL AI) 3 | golang | Fix deferred | ||
| Red Hat OpenShift Container Platform 4 | openshift-golang-builder-container | Fix deferred | ||
| Red Hat OpenShift Virtualization 4 | openshift-golang-builder-container | Fix deferred | ||
| Red Hat Hardened Images | golang1-25-main-1.25.8-1.1.hum1 | Fixed | RHSA-2026:5192 | 20.03.2026 |
| Red Hat Hardened Images | golang1-26-main-1.26.2-1.hum1 | Fixed | RHSA-2026:7291 | 09.04.2026 |
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Дополнительная информация
Статус:
5.4 Medium
CVSS3
Связанные уязвимости
Actions which insert URLs into the content attribute of HTML meta tags are not escaped. This can allow XSS if the meta tag also has an http-equiv attribute with the value "refresh". A new GODEBUG setting has been added, htmlmetacontenturlescape, which can be used to disable escaping URLs in actions in the meta content attribute which follow "url=" by setting htmlmetacontenturlescape=0.
Actions which insert URLs into the content attribute of HTML meta tags are not escaped. This can allow XSS if the meta tag also has an http-equiv attribute with the value "refresh". A new GODEBUG setting has been added, htmlmetacontenturlescape, which can be used to disable escaping URLs in actions in the meta content attribute which follow "url=" by setting htmlmetacontenturlescape=0.
URLs in meta content attribute actions are not escaped in html/template
Actions which insert URLs into the content attribute of HTML meta tags ...
Actions which insert URLs into the content attribute of HTML meta tags are not escaped. This can allow XSS if the meta tag also has an http-equiv attribute with the value "refresh". A new GODEBUG setting has been added, htmlmetacontenturlescape, which can be used to disable escaping URLs in actions in the meta content attribute which follow "url=" by setting htmlmetacontenturlescape=0.
5.4 Medium
CVSS3