VULNERABILITY INTELLIGENCE

CVE-2021-32822

CVSS score4 MEDIUM
EPSS probability0.98%
CISA KEVNot currently listed
Published2021-08-16
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N

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.

Weakness classification

  • security-advisories@github.com: CWE-538
  • nvd@nist.gov: CWE-94

Primary references