v3.7.12

Gerstep/cybosv3.7.12Aug 26, 2026by github-actions[bot]

AI Summary

Fixes multiple CVEs and improves stability across HTTP/3, Kubernetes providers, and TCP/UDP services.

Key Highlights

  • Fixed multiple security vulnerabilities (CVEs GHSA-cjr6-pf59-jq29, GHSA-7ghq-v6jf-g56c, GHSA-rf44-j88r-hh8c).
  • Applied read timeout, idle timeout, and max header bytes for HTTP/3.
  • Fixed TLS option name collisions across namespaces in the ingress-nginx provider.
  • Added an entry point option to handle request headers with aliasing names.

Full Release Notes

**Important:** Please read the [migration guide](https://doc.traefik.io/traefik/v3.7/migrate/v3/#v3712).

**CVE fixed:**
- Advisory [GHSA-cjr6-pf59-jq29](https://github.com/traefik/traefik/security/advisories/GHSA-cjr6-pf59-jq29)
- Advisory [GHSA-7ghq-v6jf-g56c](https://github.com/traefik/traefik/security/advisories/GHSA-7ghq-v6jf-g56c)
- Advisory [GHSA-rf44-j88r-hh8c](https://github.com/traefik/traefik/security/advisories/GHSA-rf44-j88r-hh8c)

**Bug fixes:**
- **[fastproxy]** Bump github.com/valyala/fasthttp to v1.73.0 ([#13769](https://github.com/traefik/traefik/pull/13769) @mmatur)
- **[file]** Include the filename in file provider configuration errors ([#13527](https://github.com/traefik/traefik/pull/13527) @lazerg)
- **[http3]** Apply read timeout, idle timeout, and max header bytes for HTTP/3 ([#13717](https://github.com/traefik/traefik/pull/13717) @gndz07)
- **[k8s]** Fix typos in docs and an OCSP log message ([#13722](https://github.com/traefik/traefik/pull/13722) @MsfPablo)
- **[k8s, k8s/ingress-nginx]** Fix redirect www host with a non-numeric port ([#13708](https://github.com/traefik/traefik/pull/13708) @mmatur)
- **[k8s/ingress-nginx]** Fix TLS option name collision across namespaces in the ingress-nginx provider ([#13721](https://github.com/traefik/traefik/pull/13721) @gndz07)
- **[server]** Add an entry point option to handle request headers with aliasing names ([#13720](https://github.com/traefik/traefik/pull/13720) @rtribotte)
- **[tcp, udp]** Reject negative weights in TCP and UDP weighted services ([#13749](https://github.com/traefik/traefik/pull/13749) @rtribotte)
- Bump etcd client modules to v3.5.33 ([#13756](https://github.com/traefik/traefik/pull/13756) @mmatur)

**Documentation:**
- **[k8s]** Update redirections block reference in basic.md ([#13723](https://github.com/traefik/traefik/pull/13723) @Larzenegger)
- **[k8s]** Fix formatting in Kubernetes setup guide ([#13742](https://github.com/traefik/traefik/pull/13742) @stefkiourk)
- **[security]** Document the security threat model and settled security decisions ([#13740](https://github.com/traefik/traefik/pull/13740) @emilevauge)
- **[service]** Clarify ServersTransport behavior for the errors middleware in Kubernetes ([#13531](https://github.com/traefik/traefik/pull/13531) @lazerg)
- Fix v3.7.11 migration guide ([#13730](https://github.com/traefik/traefik/pull/13730) @gndz07)
- Move Jean-Baptiste Doumenjou and Mathieu Lonjaret to past maintainers ([#13736](https://github.com/traefik/traefik/pull/13736) @emilevauge)
- Reduce SECURITY.md to a pointer to the security documentation ([#13732](https://github.com/traefik/traefik/pull/13732) @emilevauge)
- Update end of support dates ([#13712](https://github.com/traefik/traefik/pull/13712) @nmengin)