CVE-2026-27651: NGINX ngx_mail_auth_http_module vulnerability

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
2026-03-27
Last Updated
2026-03-28
EPSS Score
0.04% (percentile: 13.8%)

Affected Products (2)

Open Source Software

  • azl3 nginx 1.28.2-1 on Azure Linux 3.0
  • cbl2 nginx 1.22.1-15 on CBL Mariner 2.0

Revision History

  • 2026-03-27: Information published.
  • 2026-03-27: Information published.
  • 2026-03-28: Information published.