Low3.7Red Hat Linux

Low [CVE-2026-28753] NGINX Plus and NGINX Open Source: Request manipulation via header injection in SMTP upstream requests

This low-severity Red Hat Linux advisory covers CVE-2026-28753 affecting nginx-main, Red Hat Enterprise Linux.

CVE-2026-28753 Published Mar 24, 2026

CVE-2026-28753

Affected products & platforms

Red Hat LinuxUnclassified

Open vendor advisory

Android app · Google Play

Monitor future Red Hat Linux CVEs from your phone.

Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.

Matching phone alertsOptional email delivery

Get CVE alerts See app features

Summary

NGINX Plus and NGINX Open

Affected products named by the advisory: nginx-main; Red Hat Enterprise Linux.

Affected versions

nginx-main-1.30.0-1.hum1

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

RHSA-2026:8346

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Update the affected package(s) to the fixed version shipped in RHSA-2026:8346 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Discussion(0)

No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.