CVE-2026-34043: Serialize JavaScript has CPU Exhaustion Denial of Service via crafted array-like objects
Overview
- Severity
- Medium (CVSS 5.9)
- CVSS Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Mar
- Released
- 2026-04-01
- Last Updated
- 2026-04-30
- EPSS Score
- 0.02% (percentile: 5.0%)
Affected Products (2)
Open Source Software
- cbl2 reaper 3.1.1-22 on CBL Mariner 2.0
- azl3 python-tensorboard 2.16.2-6 on Azure Linux 3.0
Revision History
- 2026-04-01: Information published.
- 2026-04-02: Information published.
- 2026-04-30: Information published.