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Name
CVE-2026-28753
Description
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.
CWEs
Published Date
Updated Date
Workaround
-
Advisories
https://my.f5.com/manage/s/article/K000160367Vendor Advisory
Analysis#
Vulnerability Ratings#
6.3
CVSSv4
3.7
CVSSv31
NaN
other