πŸ›‘οΈ CVE-2026-27651
🟠 CVSS 8.0 β€” High βœ… No Known Exploit NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

When the ngx_mail_auth_http_moduleΒ module is enabled on NGINX Plus or NGINX Open Source, undisclosed requests can cause worker processes to terminate. This issue may occur when (1) CRAM-MD5 or APOP authentication is enabled, and (2) the authentication server permits retry by returning the Auth-Wait response header. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit βœ… No
Source NVD
Published 2026-03-27
Updated 2026-06-02
Modified 2026-03-27
Fix URL N/A

Affected Packages

Software From version Fixed in
nginx β€” β€”
nginx-gateway β€” β€”
nginx-open-source 1.29.0 1.29.7
nginx-plus β€” β€”

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