Servers and applications
CVE-2026-1642
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…
- Severity
- High 8.2
- Published
- 4 Feb 2026
- Last changed
- 17 Jun 2026
- Added to UpHeron
- 21 Oct 2026
- Fixed in
- 1.28.2, 1.29.5
- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
nginxServers and applications · cpe:a:f5:nginx_open_source |
|