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CVE-2021-32822

4.0 · MEDIUM

The npm hbs package is an Express view engine wrapper for Handlebars.

Published Aug 16, 2021CWE-538EPSS 0.98%

Overview

CVE-2021-32822 is a medium-severity vulnerability. It was published on August 16, 2021 and has a CVSS 3.1 base score of 4.0 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubsecuritylab.github.com/advisories/GHSL-2021-020-pillarjs-hbs/GitHubsecuritylab.github.com/advisories/GHSL-2021-020-pillarjs-hbs/

How CyberStrike helps

Frequently asked questions

What is CVE-2021-32822?

CVE-2021-32822 is a medium-severity vulnerability. It was published on August 16, 2021 and has a CVSS 3.1 base score of 4.0 (MEDIUM).

How severe is CVE-2021-32822?

This vulnerability has a CVSS 3.1 base score of 4.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-32822?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-32822?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-32822 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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