Debian/nginx: unknown
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
Action: Upgrade nginx to 1.26.3-3+deb13u3 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.26.3-3+deb13u3 | - |
Fixed versions
| 1.26.3-3+deb13u3 |
Sources
- osv: DEBIAN-CVE-2026-28753#Debian:13/nginx
- https://security-tracker.debian.org/tracker/CVE-2026-28753
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