Skip to main content
← All vulnerabilities
CVE-2021-32822GHSA-7F5C-RPF4-86P8

File disclosure in hbs

Published
Last modified
published
Not listed in CISA KEV
None on Exploit-DB, Metasploit or GitHub

Summary

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • pillarjs hbs

    All versions

  • hbsnpm

    through 4.4.0

References 1

securitylab.github.com