npm/handlebars CVE-2026-33939: high 7.5
Handlebars.js has Denial of Service via Malformed Decorator Syntax in Template Compilation
Action: Upgrade handlebars to 4.7.9 or later.
npm i handlebars@4.7.9Affected
| introduced | fixed | last affected |
|---|---|---|
| 4.0.0 | 4.7.9 | - |
Fixed versions
| 4.7.9 |
Sources
- osv: GHSA-9cx6-37pm-9jff
- https://github.com/handlebars-lang/handlebars.js/security/advisories/GHSA-9cx6-37pm-9jff
- https://nvd.nist.gov/vuln/detail/CVE-2026-33939
- 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
CVE-2026-33939 · published · modified · JSON