{"action":"Upgrade stdlib to 1.25.10 or later.","affected":[{"fixed":"1.25.10","introduced":"0"},{"fixed":"1.26.3","introduced":"1.26.0-0"}],"component":"stdlib","cve_ids":["CVE-2026-39826"],"ecosystem":"Go","epss":0.00371,"exploited":false,"fixed_versions":["1.25.10","1.26.3"],"id":"tcs_01M5KGH58C2Y1MYW942WKYSSCM","modified_at":"2026-08-31T10:25:58.429372080Z","published_at":"2026-05-07T19:21:40Z","references":["https://osv.dev/vulnerability/GO-2026-4980","https://go.dev/issue/78981","https://go.dev/cl/771180","https://groups.google.com/g/golang-announce/c/qcCIEXso47M"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"GO-2026-4980","url":"https://osv.dev/vulnerability/GO-2026-4980"}],"summary":"Escaper bypass leads to XSS in html/template"}