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

EPSS Score

0.03% (percentile: 9.1%)

Affected Products (2)

Other

• 21076-17084
• 21077-17086

Revision History

• 2026-03-27: Information published.