GHSA-62gr-4qp9-h98f

    Dashboard / Vulnerabilities / GHSA-62gr-4qp9-h98f

    GHSA-62gr-4qp9-h98f

    Published: 10 Feb 2022Last Modified: 8 Jul 2026

    Summary: Regular Expression Denial of Service in Handlebars

    Details: Handlebars before 4.4.5 allows Regular Expression Denial of Service (ReDoS) because of eager matching. The parser may be forced into an endless loop while processing crafted templates. This may allow attackers to exhaust system resources.

    References: https://nvd.nist.gov/vuln/detail/CVE-2019-20922, https://github.com/handlebars-lang/handlebars.js/commit/8d5530ee2c3ea9f0aee3fde310b9f36887d00b8b, https://snyk.io/vuln/SNYK-JS-HANDLEBARS-480388, https://www.npmjs.com/advisories/1300, https://www.npmjs.com/package/handlebars

    Affected packages

    Package

    Name: handlebars

    Purl: pkg:npm/handlebars

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 4.0.0
    Fixed -4.4.5

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-62gr-4qp9-h98f | CVE-DB