CVE-2026-35051
Fixed in a distro release EPSS <1%CVSS 7.8
Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.43, 3.6.14, and 3.7.0-rc.2, there is an authentication bypass vulnerability in Traefik's ForwardAuth middleware when trustForwardHeader=false is configured and Traefik is deployed behind a trusted upstream proxy. This issue has been patched in versions 2.11.43, 3.6.14, and 3.7.0-rc.2.
Products: traefik, Red Hat OpenShift Dev Spaces 3.28
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Go | github.com/traefik/traefik | no fix |
| Go | github.com/traefik/traefik/v2 | 2.11.43 |
| Go | github.com/traefik/traefik/v3 | 3.7.0-rc.2 |
| Go | github.com/traefik/traefik/v3 | 3.6.14 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | traefik-3.5 | no fix |
| Chainguard | traefik-fips-3.5 | no fix |
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 |
| openSUSE Tumbleweed | traefik | 3.6.15-1.1 |
| openSUSE Tumbleweed | traefik2 | 2.11.44-1.1 |