Is CVE-2019-20922 actively exploited?

CVE-2019-20922 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2019-20922?

CVE-2019-20922 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2019-20922?

Patch guidance is available from handlebarsjs security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2019-20922.

Which products are affected by CVE-2019-20922?

1 product: handlebarsjs handlebars.

Fix CVE-2019-20922 - HIGH handlebarsjs handlebars

Description

Handlebars before 4.4.5 allows Regular Expression Denial of Service (ReDoS) because of eager matching. The parser may be forced into an endless loop while processing crafted templates. This may allow attackers to exhaust system resources.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-400

Metadata

Primary Vendor: HANDLEBARSJS
Published: 9/30/2020
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

handlebarsjs : handlebars

Remediation Guidance

Executive Summary

Cite this page

CVE-2019-20922. CVEDatabase.com. Retrieved 3 May 2026. https://cvedatabase.com/cve/CVE-2019-20922

View on NIST NVD

CVE-2019-20922 vulnerability