{"cve":{"cve_id":"CVE-2026-106444","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.00294,"epss_percentile":0.20578,"epss_as_of":"2026-10-15","description":"Handlebars provides the power necessary to let users build semantic templates. From 4.0.0 until 4.7.10, Handlebars.precompile() uses quotedString() in lib/handlebars/compiler/code-gen.js to emit static template text into generated JavaScript without escaping sequences that terminate an enclosing HTML script element. When an application precompiles attacker-controlled template text and embeds the generated source directly in an inline script element, a closing script delimiter can end the element and cause following attacker-controlled markup to be parsed and executed. Ordinary server-side rendering and precompiled templates served as external JavaScript files are not affected. This issue is fixed in version 4.7.10.","published_at":"2026-10-06T19:01:14.626000Z","last_modified_at":"2026-10-07T13:58:29.527000Z","cvss_v3_score":4.7,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N","cvss_v3_severity":"MEDIUM","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-116"],"nvd_references":["https://github.com/handlebars-lang/handlebars.js/security/advisories/GHSA-xw65-4hp5-5hc7","https://github.com/handlebars-lang/handlebars.js/pull/2185","https://github.com/handlebars-lang/handlebars.js/commit/609d1b11c833c9a3e00f56f2f34d22f425446725","https://github.com/handlebars-lang/handlebars.js/releases/tag/v4.7.10"],"vuln_status":"Awaiting Analysis","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-10-06T19:34:34.439063Z","updated_at":"2026-10-08T22:06:09.590535Z"},"effective_severity":"MEDIUM","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"H","value_label":"High"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"R","value_label":"Required"},{"metric":"S","name":"Scope","value":"C","value_label":"Changed"},{"metric":"C","name":"Confidentiality","value":"L","value_label":"Low"},{"metric":"I","name":"Integrity","value":"L","value_label":"Low"},{"metric":"A","name":"Availability","value":"N","value_label":"None"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"handlebars-lang","vendor_name":"handlebars-lang","product_slug":"handlebars.js","product_name":"handlebars.js","version_start":">= 4.0.0, < 4.7.10","version_start_inclusive":true,"version_end":">= 4.0.0, < 4.7.10","version_end_inclusive":true,"cpe23_uri":"cve5:handlebars-lang:handlebars.js:>= 4.0.0, < 4.7.10:>= 4.0.0, < 4.7.10"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/handlebars-lang/handlebars.js/security/advisories/GHSA-xw65-4hp5-5hc7","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://github.com/handlebars-lang/handlebars.js/pull/2185","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/handlebars-lang/handlebars.js/commit/609d1b11c833c9a3e00f56f2f34d22f425446725","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/handlebars-lang/handlebars.js/releases/tag/v4.7.10","source_type":"PATCH","tags":["patch"]}],"timeline":[{"type":"published","at":"2026-10-06T19:01:14.626000Z","label":"CVE published","source":null}]}