Improper Encoding or Escaping of Output

Overview Affected versions of this package are vulnerable to Improper Encoding or Escaping of Output through the Kubernetes Ingress and Knative provider buildRule/buildHostRule processes in the pkg/provider/kubernetes/ingress and pkg/provider/kubernetes/knative components. An attacker can bypass...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation through the basicAuth and digestAuth middleware headerField handling in pkg/middlewares/auth/basicauth.go and pkg/middlewares/auth/digestauth.go. An attacker can impersonate an arbitrary user identity to backend...

Interpretation Conflict

github.com/traefik/traefik is vulnerable to Interpretation Conflict. The vulnerability is due to improper path normalization when handling Path, PathPrefix, or PathRegex matchers, which allows an attacker to use URL-encoded characters to bypass middleware and access unintended backend services...

Traefik 安全漏洞

Traefik is an open-source reverse proxy and load balancing tool developed by Traefik. Versions prior to Traefik 2.11.42, 3.6.11, and 3.7.0-ea.3 contain security vulnerabilities. These vulnerabilities arise from using non-standard HTTP header names, which may allow authenticated attackers to injec...

GHSA-WVVQ-WGCR-9Q48 Traefik has a Potential mTLS Bypass via Fragmented TLS ClientHello Causing Pre-SNI Sniff Fallback to Default Non-mTLS TLS Config

Summary There is a potential vulnerability in Traefik's TLS SNI pre-sniffing logic related to fragmented ClientHello packets. When a TLS ClientHello is fragmented across multiple records, Traefik's SNI extraction may fail with an EOF and return an empty SNI. The TCP router then falls back to the...

GHSA-4HJQ-9H5C-252J Traefik: HTTP/2 frames can cause a running server to panic

Summary More Details: - https://nvd.nist.gov/vuln/detail/CVE-2026-27141 - https://pkg.go.dev/golang.org/x/net/http2?tab=versions Patches - https://github.com/traefik/traefik/releases/tag/v3.6.10 - https://github.com/traefik/traefik/releases/tag/v2.11.40 For more information If you have any...

SUSE CVE-2026-29777

Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.10, A tenant with write access to an HTTPRoute resource can inject backtick-delimited rule tokens into Traefik's router rule language via unsanitized header or query parameter match values. In shared gateway deployments, this can...

CVE-2026-29777

Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.10, A tenant with write access to an HTTPRoute resource can inject backtick-delimited rule tokens into Traefik's router rule language via unsanitized header or query parameter match values. In shared gateway deployments, this can...

GO-2026-4593 Traefik has unbounded io.ReadAll on auth server response body that causes OOM DOS in github.com/traefik/traefik

Traefik has unbounded io.ReadAll on auth server response body that causes OOM DOS in github.com/traefik/traefik...

SUSE CVE-2026-29054

Traefik is an HTTP reverse proxy and load balancer. From version 2.11.9 to 2.11.37 and from version 3.1.3 to 3.6.8, there is a potential vulnerability in Traefik managing the Connection header with X-Forwarded headers. When Traefik processes HTTP/1.1 requests, the protection put in place to preve...

Improper Handling of Case Sensitivity

Overview Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity in the processing of HTTP/1.1 requests when handling the Connection header with X-Forwarded headers. An attacker can cause the removal of forwarded identity headers by sending requests with lowercas...

Improper Handling of Case Sensitivity

Overview Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity in the processing of HTTP/1.1 requests when handling the Connection header with X-Forwarded headers. An attacker can cause the removal of forwarded identity headers by sending requests with lowercas...

CVE-2026-26999

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.38 and 3.6.9, there is a potential vulnerability in Traefik managing TLS handshake on TCP routers. When Traefik processes a TLS connection on a TCP router, the read deadline used to bound protocol sniffing is cleared befor...

CVE-2026-26998

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.38 and 3.6.9, there is a potential vulnerability in Traefik managing the ForwardAuth middleware responses. When Traefik is configured to use the ForwardAuth middleware, the response body from the authentication server is...

CVE-2026-29054

CVE-2026-29054 (Traefik) affects Traefik HTTP reverse proxy/load balancer from versions 2.11.9–2.11.37 and 3.1.3–3.6.8. The issue arises when Traefik processes HTTP/1.1 requests: the protection that prevents removal of Traefik-managed X-Forwarded headers via the Connection header compares tokens ...

SUSE CVE-2026-22045

Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.35 and 3.6.7, there is a potential vulnerability in Traefik ACME TLS certificates' automatic generation: the ACME TLS-ALPN fast path can allow unauthenticated clients to tie up go routines and file descriptors indefinitely when the...

Allocation of Resources Without Limits or Throttling

Overview github.com/traefik/traefik/v2/pkg/server/router/tcp is a modern HTTP reverse proxy and load balancer that makes deploying microservices easy. Traefik integrates with your existing infrastructure components Docker, Swarm mode, Kubernetes, Marathon, Consul, Etcd, Rancher, Amazon ECS, ... a...

CVE-2026-22045

Summary: CVE-2026-22045 affects Traefik’s ACME TLS-ALPN fast path. When ACME TLS challenge is enabled, an unauthenticated client can open many connections and stall the ClientHello with acme-tls/1, causing goroutines and file descriptors to be tied up indefinitely and leading to DoS at the entryp...

CVE-2026-22045 Traefik's ACME TLS-ALPN fast path lacks timeouts and close on handshake stall

Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.35 and 3.6.7, there is a potential vulnerability in Traefik ACME TLS certificates' automatic generation: the ACME TLS-ALPN fast path can allow unauthenticated clients to tie up go routines and file descriptors indefinitely when the...

Traefik security vulnerabilities

Traefik is an open-source reverse proxy and load balancing tool developed by Traefik. Versions prior to Traefik 2.11.35 and 3.6.7 contained security vulnerabilities. These vulnerabilities stemmed from potential issues with the automatic generation of ACME TLS certificates, which could lead to...