medium5.8
CVE-2026-42926
When NGINX Open Source is configured to proxy HTTP/2 traffic by setting proxy_http_version to 2, and also uses proxy_set_body, an attacker may be able to injec…
Impact
When NGINX Open Source is configured to proxy HTTP/2 traffic by setting proxy_http_version to 2, and also uses proxy_set_body, an attacker may be able to inject frame headers and payload bytes to the upstream peer. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| F5 | Nginx Gateway Fabric | from 1.3.0 through 1.6.2 from 2.0.0 through 2.6.0 |
| F5 | Nginx Open Source | from 1.29.4 through 1.30.0 |
| F5 | Nginx Instance Manager | from 2.16.0 through 2.22.0 |
| F5 | Nginx Ingress Controller | from 3.5.0 through 3.7.2 from 4.0.0 through 4.0.1 from 5.0.0 through 5.4.2 |