Tracker / CVE-2026-1642
CVE-2026-1642
Medium 5.9
A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security (TLS) servers. An attacker with a man-in-the-middle (MITM) position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data into the response from an upstream proxied server. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Affected products and versions
| f5 | nginx_gateway_fabric · 1.2.0 → 1.6.2 |
|---|---|
| f5 | nginx_gateway_fabric · 2.0.0 → 2.4.1 |
| f5 | nginx_ingress_controller · 3.4.0 → 3.7.2 |
| f5 | nginx_ingress_controller · 4.0.0 → 4.0.1 |
| f5 | nginx_ingress_controller · 5.0.0 → 5.3.3 |
| f5 | nginx_instance_manager · 2.15.1 → 2.21.0 |
| f5 | nginx_open_source · 1.29.0 → 1.29.5 |
| f5 | nginx_open_source · 1.3.0 → 1.28.2 |
| f5 | nginx_plus |
| f5 | nginx_plus · r33 → r35 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.