{"action":"Upgrade handlebars to 4.7.9 or later.","affected":[{"fixed":"4.7.9","introduced":"4.0.0"}],"component":"handlebars","cve_ids":[],"ecosystem":"npm","exploited":false,"fixed_versions":["4.7.9"],"ghsa_id":"GHSA-442j-39wm-28r2","id":"tcs_01M5KEZ29D4SDCTEEZYRWTRMPH","modified_at":"2026-09-10T03:50:36.874716263Z","published_at":"2026-03-29T15:16:37Z","references":["https://osv.dev/vulnerability/GHSA-442j-39wm-28r2","https://github.com/handlebars-lang/handlebars.js/security/advisories/GHSA-442j-39wm-28r2","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":"low","score":3.7},"sources":[{"source":"osv","source_id":"GHSA-442j-39wm-28r2","url":"https://osv.dev/vulnerability/GHSA-442j-39wm-28r2"}],"summary":"Handlebars.js has a Property Access Validation Bypass in container.lookup"}