VDB
DEBIAN-CVE-2026-28753
DEBIAN-CVE-2026-28753
PUBLISHED
CVSS 3.700000047683716 LOW
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_mail_smtp_module module due to the improper handling of CRLF sequences in DNS responses. This allows an attacker-controlled DNS server to inject arbitrary headers into SMTP upstream requests, leading to potential request manipulation. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Risk Scores
CVSS v3.1
3.700000047683716
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | nginx | 1.30.0-1, 1.18.0-6.1, 1.18.0-6.1+deb11u1 |
| Debian:14 | nginx | 0, 1.26.3-3, 1.28.0-1 |
| Debian:12 | nginx | 1.28.1-1, 1.28.0-2, * |
| Debian:13 | nginx | 0, 1.28.0-1, 1.28.0-2 |
Timeline
- Mar 24, 2026 CVE Published
- May 16, 2026 CVE Updated