Tracker / CVE-2026-27651
CVE-2026-27651
High 7.5
When the ngx_mail_auth_http_module 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.
Affected products and versions
| f5 | nginx_open_source · 0.5.15 → 0.9.7 |
|---|---|
| f5 | nginx_open_source · 1.0.0 → 1.28.3 |
| f5 | nginx_open_source · 1.29.0 → 1.29.7 |
| f5 | nginx_plus |
| f5 | nginx_plus · r33 → r35 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.