{"id":"CVE-2026-27142","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-27142","generatedAt":"2026-10-28T04:12:23.244Z","title":"This can allow XSS if the meta tag also has an http-equiv attribute with the value \"refresh\".","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.","published":"2026-03-06T22:16:01.000Z","lastModified":"2026-06-17T10:26:45.000Z","status":"Analyzed","sourceIdentifier":"security@golang.org","cvss":{"version":"3.1","score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["golang/go"],"epss":{"score":0.00341,"percentile":0.27427,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.34%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://go.dev/cl/752081","tags":["Mailing List"],"source":"security@golang.org"},{"url":"https://go.dev/issue/77954","tags":["Issue Tracking"],"source":"security@golang.org"},{"url":"https://groups.google.com/g/golang-announce/c/EdhZqrQ98hk","tags":["Release Notes"],"source":"security@golang.org"},{"url":"https://pkg.go.dev/vuln/GO-2026-4603","tags":["Vendor Advisory"],"source":"security@golang.org"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-27142","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}