The vulnerability of the resolvePartial() function in the lib/handlebars/runtime.js component, a tool for creating Handlebars templates, allows attackers to access confidential data and compromise its integrity.

The vulnerability of the resolvePartial function in the lib/handlebars/runtime.js component, a tool for creating Handlebars templates, is related to the lack of security measures for protecting the structure of web pages. Exploiting this vulnerability could allow an attacker to gain access to...

The vulnerability of the `resolvePartial()` and `invokePartial()` functions in the `lib/handlebars/runtime.js` component, a tool for creating Handlebars templates, allows a malicious actor to cause a service failure.

The vulnerability of the resolvePartial and invokePartial functions in the lib/handlebars/runtime.js component, which is used for creating Handlebars templates, is related to improper code generation. Exploiting this vulnerability could allow an attacker to cause service failures...

GHSA-442J-39WM-28R2 Handlebars.js has a Property Access Validation Bypass in container.lookup

Summary In lib/handlebars/runtime.js, the container.lookup function uses container.lookupProperty as a gate check to enforce prototype-access controls, but then discards the validated result and performs a second, unguarded property access depthsiname. This Time-of-Check Time-of-Use TOCTOU patter...

CVE-2026-33916: Improper Neutralization of Input During Web Page Generation

Handlebars provides the power necessary to let users build semantic templates. In versions 4.0.0 through 4.7.8, resolvePartial in the Handlebars runtime resolves partial names via a plain property lookup on options.partials without guarding against prototype-chain traversal. When Object.prototype...

Handlebars.js has Prototype Pollution Leading to XSS through Partial Template Injection

Summary resolvePartial in the Handlebars runtime resolves partial names via a plain property lookup on options.partials without guarding against prototype-chain traversal. When Object.prototype has been polluted with a string value whose key matches a partial reference in a template, the polluted...

GHSA-2QVQ-RJWJ-GVW9 Handlebars.js has Prototype Pollution Leading to XSS through Partial Template Injection

Summary resolvePartial in the Handlebars runtime resolves partial names via a plain property lookup on options.partials without guarding against prototype-chain traversal. When Object.prototype has been polluted with a string value whose key matches a partial reference in a template, the polluted...