CVE-2026-27142

ADVISORY - nist

Summary

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.

Common Weakness Enumeration (CWE)

ADVISORY - nist

CWE-noinfo⁠

Impacted images

Advisories

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