VDB
ALPINE-CVE-2026-27651
ALPINE-CVE-2026-27651
PUBLISHED
CVSS 8.699999809265137 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 4.0
8.699999809265137
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.23 | nginx | 1.0.11-r0, 1.0.11-r1, 1.0.14-r0 |
| Alpine:v3.22 | nginx | 0, 0.8.53-r0, 0.8.54-r0 |
| Alpine:v3.24 | nginx | 0 |
Timeline
- Mar 24, 2026 CVE Published
- Apr 30, 2026 Distribution Patch
- May 21, 2026 PoC Published
- Jun 10, 2026 PoC Published
- Jun 17, 2026 CVE Updated