CVE-2026-33916: Handlebars.js has Prototype Pollution Leading to XSS through Partial Template Injection
Overview
- Severity
- Medium (CVSS 4.7)
- CVSS Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Mar
- Released
- 2026-03-31
- Last Updated
- 2026-04-30
- EPSS Score
- 0.06% (percentile: 19.4%)
Affected Products (1)
Open Source Software
- cbl2 reaper 3.1.1-22 on CBL Mariner 2.0
Revision History
- 2026-03-31: Information published.
- 2026-04-30: Information published.