Missing Authentication for Critical Function

Overview Affected versions of this package are vulnerable to Missing Authentication for Critical Function in the ServeHTTP function, which does not sufficiently sanitize X- alias headers. An attacker can gain unauthenticated access to protected endpoints by injecting spoofed trust context with...

GHSA-6384-M2MW-RF54 Traefik's ForwardAuth trustForwardHeader=false allows spoofed X-Forwarded-Prefix to bypass authentication

Summary There is a high-severity authentication bypass vulnerability in Traefik's ForwardAuth middleware when trustForwardHeader=false is configured and Traefik is deployed behind a trusted upstream proxy. While X-Forwarded- headers such as X-Forwarded-For, X-Forwarded-Host, and X-Forwarded-Proto...

Insufficient Verification of Data Authenticity

Overview Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity in the ForwardAuth middleware when trustForwardHeader is set to false and the deployment is behind a trusted upstream proxy. An attacker can gain unauthorized access to protected backend...

Insufficient Verification of Data Authenticity

Overview Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity in the ForwardAuth middleware when trustForwardHeader is set to false and the deployment is behind a trusted upstream proxy. An attacker can gain unauthorized access to protected backend...

Insufficient Verification of Data Authenticity

Overview Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity in the ForwardAuth middleware when trustForwardHeader is set to false and the deployment is behind a trusted upstream proxy. An attacker can gain unauthorized access to protected backend...

Insufficient Verification of Data Authenticity

Overview github.com/traefik/traefik/v2/pkg/middlewares/auth is a Cloud Native Application Proxy. Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity in the ForwardAuth middleware when trustForwardHeader is set to false and the deployment is behind a...

Insufficient Verification of Data Authenticity

Overview Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity in the ForwardAuth middleware when trustForwardHeader is set to false and the deployment is behind a trusted upstream proxy. An attacker can gain unauthorized access to protected backend...

Insufficient Verification of Data Authenticity

Overview Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity in the ForwardAuth middleware when trustForwardHeader is set to false and the deployment is behind a trusted upstream proxy. An attacker can gain unauthorized access to protected backend...

Insufficient Verification of Data Authenticity

Overview Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity in the ForwardAuth middleware when trustForwardHeader is set to false and the deployment is behind a trusted upstream proxy. An attacker can gain unauthorized access to protected backend...

Insufficient Verification of Data Authenticity

Overview Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity in the ForwardAuth middleware when trustForwardHeader is set to false and the deployment is behind a trusted upstream proxy. An attacker can gain unauthorized access to protected backend...

Insufficient Verification of Data Authenticity

Overview Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity in the ForwardAuth middleware when trustForwardHeader is set to false and the deployment is behind a trusted upstream proxy. An attacker can gain unauthorized access to protected backend...

Insufficient Verification of Data Authenticity

Overview Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity in the ForwardAuth middleware when trustForwardHeader is set to false and the deployment is behind a trusted upstream proxy. An attacker can gain unauthorized access to protected backend...

Traefik's ForwardAuth trustForwardHeader=false allows spoofed X-Forwarded-Prefix to bypass authentication

Summary There is a high-severity authentication bypass vulnerability in Traefik's ForwardAuth middleware when trustForwardHeader=false is configured and Traefik is deployed behind a trusted upstream proxy. While X-Forwarded- headers such as X-Forwarded-For, X-Forwarded-Host, and X-Forwarded-Proto...

BIT-OAUTH2-PROXY-2026-40575 OAuth2 Proxy has an Authentication Bypass via X-Forwarded-Uri Header Spoofing

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Versions 7.5.0 through 7.15.1 may trust a client-supplied X-Forwarded-Uri header when --reverse-proxy is enabled and --skip-auth-regex or --skip-auth-route is configured. An attacker can spoof this header so OAut...

CVE-2026-33610 Possible file descriptor exhaustion in forward-dnsupdate

A rogue primary server may cause file descriptor exhaustion and eventually a denial of service, when a PowerDNS secondary server forwards a DNS update request to it...

CVE-2026-33610

The CVE describes a denial-of-service risk in PowerDNS: a rogue primary server can exhaust file descriptors when a PowerDNS secondary forwards a DNS update request to it. This is triggered in the forward-dnsupdate path, leading to an eventual DoS on the affected system. Connected advisories (OSV/...

CVE-2026-40575

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Versions 7.5.0 through 7.15.1 may trust a client-supplied X-Forwarded-Uri header when --reverse-proxy is enabled and --skip-auth-regex or --skip-auth-route is configured. An attacker can spoof this header so OAut...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation via the X-Forwarded-Uri header when the --reverse-proxy setting is enabled and either --skip-auth-regex or --skip-auth-route is configured. An attacker can gain unauthorized access to protected routes by spoofing the...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation via the X-Forwarded-Uri header when the --reverse-proxy setting is enabled and either --skip-auth-regex or --skip-auth-route is configured. An attacker can gain unauthorized access to protected routes by spoofing the...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation via the X-Forwarded-Uri header when the --reverse-proxy setting is enabled and either --skip-auth-regex or --skip-auth-route is configured. An attacker can gain unauthorized access to protected routes by spoofing the...