9.2
Critique
CVE-2026-106445 Handlebars provides the power necessary to let users build semantic templates
Description
Handlebars provides the power necessary to let users build semantic templates. From 3.0.0 until 4.7.10, Handlebars lookupProperty returns Function.prototype.constructor before applying the prototype-access deny list because constructor is an own property of Function.prototype. When an attacker can render a controlled template with allowProtoMethodsByDefault enabled and an accessible function in the template context, the template can traverse from that function through its prototype to Function.prototype and then obtain the Function constructor through the own-property bypass. This permits attacker-controlled JavaScript to execute with the server application's privileges. This issue is fixed in version 4.7.10.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| handlebars.js 3.0 | 3.0.0 → < 4.7.10 | 4.7.10 |
Références
- github.com github.com
- github.com github.com
- github.com github.com
- github.com github.com
Chronologie
- Publiée
- Dernière modification
Autres CVE de handlebars.js
Les 9 CVE de handlebars.js →
CVE-2026-106446
Handlebars provides the power necessary to let users build semantic templates
9.8
Critique
CVE-2026-106444
Handlebars provides the power necessary to let users build semantic templates
4.7
Moyenne
CVE-2026-33941
Handlebars provides the power necessary to let users build semantic templates
8.3
Élevée
CVE-2026-33940
Handlebars provides the power necessary to let users build semantic templates
8.1
Élevée