VDB
DEBIAN-CVE-2026-27651
DEBIAN-CVE-2026-27651
PUBLISHED
CVSS 7.5 HIGH
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.
Risk Scores
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | nginx | 1.28.0-3, 1.28.0-4, 1.28.0-5 |
| Debian:12 | nginx | 0, 1.22.1-9+deb12u1, 1.22.1-9+deb12u2 |
| Debian:14 | nginx | 0, 1.26.3-3, 1.28.0-1 |
| Debian:13 | nginx | 1.28.0-2, 1.26.3-3+deb13u2, 1.28.0-1 |
Timeline
- Mar 24, 2026 CVE Published
- May 16, 2026 CVE Updated
- May 21, 2026 PoC Published
- Jun 10, 2026 PoC Published