CVE-2026-39823 Bypass of meta content URL escaping causes XSS in html/template

CVE-2026-27142 fixed a vulnerability in which URLs were not correctly escaped inside of a tag's attribute. If the URL content were to insert ASCII whitespaces around the '=' rune inside of the attribute, the escaper would fail to similarly escape it, leading to XSS...

Amazon Linux 2023 : containerd, containerd-stress (ALAS2023-2026-1534)

"It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1534 advisory. url.Parse insufficiently validated the host/authority component and accepted some invalid URLs. CVE-2026-25679 On Unix platforms, when listing the contents of a directory using File.ReadDir o...

BIT-GOLANG-2026-27142 URLs in meta content attribute actions are not escaped in html/template

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 actio...

AZL-79622 CVE-2026-27142 affecting package golang 1.26.0-1

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 actio...

CVE-2026-27142

CVE-2026-27142 is disclosed as an issue where URLs inserted into the content attribute of HTML meta tags were not escaped, potentially enabling XSS when the meta tag has http-equiv="refresh". Public advisories (ALAS2-2026-3310, ALAS2-2026-3313, ALAS2-2026-3311, ALAS2023-2026-1771, etc.) link this...

CVE-2026-27142

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 actio...