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Medium severity6.1NVD Advisory· Published Mar 6, 2026· Updated Apr 21, 2026

CVE-2026-27142

CVE-2026-27142

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.

AI Insight

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Affected products

3817

Patches

Vulnerability mechanics

References

4

News mentions

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