Bypass of meta content URL escaping causes XSS in html/template

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-39823 · Microsoft / collected KEV context

EUVD-2026-28424

GO-2026-4982

BIT-golang-2026-39823

cve-program · CVE-2026-39823

• https://go.dev/issue/78913
• https://go.dev/cl/769920
• https://groups.google.com/g/golang-announce/c/qcCIEXso47M
• https://pkg.go.dev/vuln/GO-2026-4982

euvd · EUVD-2026-28424

• https://go.dev/issue/78913
• https://go.dev/cl/769920
• https://groups.google.com/g/golang-announce/c/qcCIEXso47M
• https://pkg.go.dev/vuln/GO-2026-4982

nvd · CVE-2026-39823

• https://go.dev/cl/769920
• https://go.dev/issue/78913
• https://groups.google.com/g/golang-announce/c/qcCIEXso47M
• https://pkg.go.dev/vuln/GO-2026-4982

osv · GO-2026-4982

• https://go.dev/issue/78913
• https://go.dev/cl/769920
• https://groups.google.com/g/golang-announce/c/qcCIEXso47M

• CVE-2026-27142 fixed a vulnerability in which URLs were not correctly escaped inside of a <meta> tag's <content> attribute. If the URL content were to insert ASCII whitespaces around the '=' rune inside of the <content> attribute, the escap… · Advisory content revised · 1 Nov 2026