{"id":"CVE-2026-56858","revision":"dfcb4278a5984ea0a9dfc2f6eb0396d4","records":[{"revision":"dfcb4278a5984ea0a9dfc2f6eb0396d4","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-56858","aliases":[],"title":"Fix Javascript regexp context tracking in html/template","description":"Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS.","state":0,"publishedAt":"2026-08-13T21:58:53.354+00:00","modifiedAt":"2026-08-14T15:32:29.852+00:00","affected":[{"ecosystem":"https://pkg.go.dev","name":"html/template","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Go standard library\",\n                    \"product\": \"html/template\",\n                    \"collectionURL\": \"https://pkg.go.dev\",\n                    \"packageName\": \"html/template\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"1.25.13\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"1.26.0-0\",\n                            \"lessThan\": \"1.26.6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"1.27.0-0\",\n                            \"lessThan\": \"1.27.0-rc.3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"programRoutines\": [\n                        {\n                            \"name\": \"tJS\"\n                        },\n                        {\n                            \"name\": \"Template.Execute\"\n                        },\n                        {\n                            \"name\": \"Template.ExecuteTemplate\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[],"references":["https://go.dev/issue/80435","https://go.dev/cl/807100","https://groups.google.com/g/golang-announce/c/94pEornpRlI","https://pkg.go.dev/vuln/GO-2026-6091"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-56858","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-56858","identifiers":["CVE-2026-56858"]},"retained":false,"historicalAffected":[]}],"coverage":[]}