handlebars vulnerabilities

Browse known CVEs and advisories by package and ecosystem. Severity tells you the worst case. What determines real risk is whether the vulnerable code actually runs in your applications.

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CVE-IDSeverityPackage summary
GHSA-7RX3-28CR-V5WHMediumhandlebars: Handlebars.js has a Prototype Method Access Control Gap via Missing __lookupSetter__ Blocklist EntryGHSA-442J-39WM-28R2Lowhandlebars: Handlebars.js has a Property Access Validation Bypass in container.lookupCVE-2026-33941Highhandlebars: Handlebars.js has JavaScript Injection in CLI Precompiler via Unescaped Names and OptionsCVE-2026-33940Highhandlebars: Handlebars.js has JavaScript Injection via AST Type Confusion when passing an object as dynamic…CVE-2026-33939Highhandlebars: Handlebars.js has Denial of Service via Malformed Decorator Syntax in Template CompilationCVE-2026-33938Highhandlebars: Handlebars.js has JavaScript Injection via AST Type Confusion by tampering @partial-blockCVE-2026-33937Criticalhandlebars: Handlebars.js has JavaScript Injection via AST Type ConfusionCVE-2026-33916Mediumhandlebars: Handlebars.js has Prototype Pollution Leading to XSS through Partial Template InjectionCVE-2021-23383Criticalhandlebars: Prototype Pollution in handlebarsCVE-2019-20922Highhandlebars: Regular Expression Denial of Service in HandlebarsCVE-2019-20920Highhandlebars: Arbitrary Code Execution in HandlebarsCVE-2021-23369Criticalhandlebars: Remote code execution in handlebars when compiling templatesGHSA-Q2C6-C6PM-G3GHHighhandlebars: Arbitrary Code Execution in handlebarsGHSA-G9R4-XPMJ-MJ65Highhandlebars: Prototype Pollution in handlebarsGHSA-2CF5-4W76-R9QVHighhandlebars: Arbitrary Code Execution in handlebarsGHSA-F52G-6JHX-586PMediumhandlebars: Denial of Service in handlebarsCVE-2019-19919Criticalhandlebars: Prototype Pollution in handlebarsGHSA-Q42P-PG8M-CQH6Highhandlebars: Prototype Pollution in handlebarsCVE-2015-8861Mediumhandlebars: Cross-Site Scripting in handlebars

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