CVE-2026-33939: Handlebars.js has Denial of Service via Malformed Decorator Syntax in Template Compilation

Overview

Severity
High (CVSS 7.5)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploit Status
Not Exploited
Patch Tuesday
2026-Mar
Released
2026-03-31
EPSS Score
0.04% (percentile: 11.2%)

Affected Products (1)

Open Source Software

  • cbl2 reaper 3.1.1-22 on CBL Mariner 2.0

Revision History

  • 2026-03-31: Information published.