CVE-2019-20922 is a Regular Expression Denial of Service (ReDoS) vulnerability affecting Handlebars.js versions prior to 4.4.5. An attacker can exploit this by crafting malicious templates, causing the parser to enter an endless loop and exhaust system resources. This vulnerability has a CVSS score of 7.5 (HIGH) due to its network-based attack vector, low attack complexity, and high impact on availability. There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.0.0, < 4.4.5CPE matchmatch criteria | cpe:2.3:a:handlebarsjs:handlebars:*:*:*:*:*:node.js:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.