{"id":"GHSA-7f5c-rpf4-86p8","aliases":["CVE-2021-32822"],"title":"hbs: Insertion of Sensitive Information into Externally-Accessible File or Directory and Exposure of Sensitive Information to an Unauthorized Actor","description":"The npm hbs package is an Express view engine wrapper for Handlebars. Depending on usage, users of hbs may be vulnerable to a file disclosure vulnerability. There is currently no patch for this vulnerability. hbs mixes pure template data with engine configuration options through the Express render API. By overwriting internal configuration options a file disclosure vulnerability may be triggered in downstream applications. For an example PoC see the referenced GHSL-2021-020.","severity":"medium","score":4,"published":"2021-09-02T17:16:46.000Z","modified":"2026-10-27T16:15:05.322Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"npm","name":"hbs","ranges":[{"events":[{"introduced":"0"},{"last_affected":"4.4.0"}],"type":"SEMVER"}],"versions":[],"fixed":[]}],"references":["https://nvd.nist.gov/vuln/detail/CVE-2021-32822","https://github.com/pillarjs/hbs","https://securitylab.github.com/advisories/GHSL-2021-020-pillarjs-hbs"],"sources":[{"name":"OSV","id":"GHSA-7f5c-rpf4-86p8","modified":"2026-10-27T16:15:05.322069543Z","url":"https://osv.dev/vulnerability/GHSA-7f5c-rpf4-86p8"}],"assessments":[{"source":"OSV","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N","score":4}]}