CVE-2021-32822

MediumCVSS 5.3/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-538 CWE-94

Affected software

Vendor	Product	Versions
pillarjs	hbs	all

References

https://securitylab.github.com/advisories/GHSL-2021-020-pillarjs-hbs/Exploit, Third Party Advisory
https://securitylab.github.com/advisories/GHSL-2021-020-pillarjs-hbs/Exploit, Third Party Advisory

Timeline

Published: Aug 16, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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