CVE-2026-27142 - URLs in meta content attribute actions are not escaped in html/template
CVE ID :CVE-2026-27142
Published : March 6, 2026, 10:16 p.m. | 2 hours, 41 minutes ago
Description :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.
Severity: 0.0 | NA
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Published : March 6, 2026, 10:16 p.m. | 2 hours, 41 minutes ago
Description :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.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...