CVE-2021-23383
CRITICAL9.8EPSS 5.7%Prototype Pollution in handlebars
Published: 2/10/2022Modified: 4/28/2026
Description
The package handlebars before 4.7.7 are vulnerable to Prototype Pollution when selecting certain compiling options to compile templates coming from an untrusted source.
Affected packages (2)
- Debian/node-handlebarsfrom 0, < 3:4.7.6+~4.1.0-2
- npm/handlebarsfrom 0, < 4.7.7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
References (11)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-23383
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2021-23383
- PATCHhttps://github.com/handlebars-lang/handlebars.js
- WEBhttps://github.com/handlebars-lang/handlebars.js/commit/f0589701698268578199be25285b2ebea1c1e427
- WEBhttps://github.com/rubysec/ruby-advisory-db/blob/master/gems/handlebars-source/CVE-2021-23383.yml
- WEBhttps://security.netapp.com/advisory/ntap-20210618-0007
- WEBhttps://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1279031
- WEBhttps://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1279032
- WEBhttps://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1279030
- WEBhttps://snyk.io/vuln/SNYK-JS-HANDLEBARS-1279029
- WEBhttps://www.npmjs.com/package/handlebars