← Back to CVEs

CVE-2026-27142

MEDIUM

6.1

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.

CVE Details

CVSS v3.1 Score6.1

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published3/6/2026

Last Modified3/16/2026

Sourcenvd

Honeypot Sightings0

References

https://go.dev/cl/752081(security@golang.org)

https://go.dev/issue/77954(security@golang.org)

https://groups.google.com/g/golang-announce/c/EdhZqrQ98hk(security@golang.org)

https://pkg.go.dev/vuln/GO-2026-4603(security@golang.org)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.