CVE-2026-27571: nats-server websockets are vulnerable to pre-auth memory DoS
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
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Feb
- Released
- 2026-02-27
- Last Updated
- 2026-02-28
- EPSS Score
- 0.03% (percentile: 9.0%)
Affected Products (2)
Open Source Software
- cbl2 telegraf 1.29.4-18 on CBL Mariner 2.0
- azl3 telegraf 1.31.0-12 on Azure Linux 3.0
Revision History
- 2026-02-27: Information published.
- 2026-02-27: Information published.
- 2026-02-28: Information published.