CVE-2026-33937: Handlebars.js has JavaScript Injection via AST Type Confusion
Overview
- Severity
- Critical (CVSS 9.8)
- CVSS Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Mar
- Released
- 2026-03-31
- EPSS Score
- 0.25% (percentile: 48.2%)
Detection & Weaponization (1 sources)
Maturity: Exploit
- GitHub PoC: 1 repositories
Affected Products (1)
Open Source Software
- cbl2 reaper 3.1.1-22 on CBL Mariner 2.0
Revision History
- 2026-03-31: Information published.