AlmaLinux 9.6 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-core / nginx-filesystem / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1785509707)

The AlmaLinux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1785509707 advisory. - NGINX Open Source and NGINX Plus have a vulnerability in the ngxmailsmtpmodule that might allow an unauthenticated attacker to...

Rocky Linux 9.6 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-core / nginx-filesystem / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1785509707)

The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1785509707 advisory. - NGINX Open Source and NGINX Plus have a vulnerability in the ngxmailsmtpmodule that might allow an unauthenticated attacker to...

AlmaLinux 9.2 [TuxCare] Security Update: nginx / nginx-all-modules / nginx-core / nginx-filesystem / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1785922957)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1785922957 advisory. - NGINX Open Source and NGINX Plus have a vulnerability in the ngxmailsmtpmodule that might allow an unauthenticated attacker to...

ROS-20260508-73-0018

A vulnerability in the ngxmailsmtpmodule module of the NGINX Plus and NGINX Open Source HTTP server is related to the failure to take measures to neutralize CRLF sequences. Exploitation of the vulnerability may allow a remote intruder to affect the integrity of protected information...

AZL-80780 CVE-2026-28753 affecting package nginx for versions less than 1.28.3-1

NGINX Plus and NGINX Open Source have a vulnerability in the ngxmailsmtpmodule 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...

ALPINE-CVE-2026-28753

NGINX Plus and NGINX Open Source have a vulnerability in the ngxmailsmtpmodule 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...

CVE-2026-28753

NGINX Plus and NGINX Open Source have a vulnerability in the ngxmailsmtpmodule 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...

CVE-2026-28753: Improper Neutralization of CRLF Sequences

NGINX Plus and NGINX Open Source have a vulnerability in the ngxmailsmtpmodule 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...

CVE-2025-53859

NGINX Open Source and NGINX Plus have a vulnerability in the ngxmailsmtpmodule that might allow an unauthenticated attacker to over-read NGINX SMTP authentication process memory; as a result, the server side may leak arbitrary bytes sent in a request to the authentication server. This issue happe...

CVE-2025-53859: Out-of-bounds Read

NGINX Open Source and NGINX Plus have a vulnerability in the ngxmailsmtpmodule that might allow an unauthenticated attacker to over-read NGINX SMTP authentication process memory; as a result, the server side may leak arbitrary bytes sent in a request to the authentication server. This issue happe...