CVE-2026-28753

LOW

3.7

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.

Details CVE

Score CVSS v3.13.7

SeveriteLOW

Vecteur CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Vecteur d'attaqueNETWORK

ComplexiteHIGH

Privileges requisNONE

Interaction utilisateurNONE

Publie3/24/2026

Derniere modification3/26/2026

Sourcenvd

Observations honeypot0

Produits affectes

f5:nginx_open_sourcef5:nginx_plus

Faiblesses (CWE)

CWE-93

References

https://my.f5.com/manage/s/article/K000160367(f5sirt@f5.com)

Correlations IOC

Aucune correlation enregistree

This product uses data from the NVD API but is not endorsed or certified by the NVD.