{"action":"Upgrade handlebars to 4.7.9 or later.","affected":[{"fixed":"4.7.9","introduced":"4.0.0"}],"component":"handlebars","cve_ids":["CVE-2026-33937"],"ecosystem":"npm","epss":0.01907,"exploited":false,"fixed_versions":["4.7.9"],"ghsa_id":"GHSA-2w6w-674q-4c4q","id":"tcs_01M5KEV7X82SV5KAQEZN9E0KE7","modified_at":"2026-09-10T03:50:36.539490658Z","published_at":"2026-03-27T18:19:58Z","references":["https://osv.dev/vulnerability/GHSA-2w6w-674q-4c4q","https://github.com/handlebars-lang/handlebars.js/security/advisories/GHSA-2w6w-674q-4c4q","https://nvd.nist.gov/vuln/detail/CVE-2026-33937","https://github.com/handlebars-lang/handlebars.js/commit/68d8df5a88e0a26fe9e6084c5c6aaebe67b07da2","https://github.com/handlebars-lang/handlebars.js","https://github.com/handlebars-lang/handlebars.js/releases/tag/v4.7.9"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"GHSA-2w6w-674q-4c4q","url":"https://osv.dev/vulnerability/GHSA-2w6w-674q-4c4q"}],"summary":"Handlebars.js has JavaScript Injection via AST Type Confusion"}