EUVD-2026-41614

Gitea Docker image: REVERSEPROXYTRUSTEDPROXIES = default lets any source IP impersonate any user via X-WEBAUTH-USER...

CVE-2026-46415

The Caddy Defender plugin is a middleware for Caddy that allows users to block or manipulate requests based on the client's IP address. Prior to version 0.10.1, Caddy Defender used r.RemoteAddr when evaluating whether a request should be blocked. RemoteAddr is the address of the immediate peer...

CVE-2026-46415 Caddy Defender trusted proxy client IP bypass

The Caddy Defender plugin is a middleware for Caddy that allows users to block or manipulate requests based on the client's IP address. Prior to version 0.10.1, Caddy Defender used r.RemoteAddr when evaluating whether a request should be blocked. RemoteAddr is the address of the immediate peer...

CVE-2026-46415 Caddy Defender trusted proxy client IP bypass

The Caddy Defender plugin is a middleware for Caddy that allows users to block or manipulate requests based on the client's IP address. Prior to version 0.10.1, Caddy Defender used r.RemoteAddr when evaluating whether a request should be blocked. RemoteAddr is the address of the immediate peer...

CVE-2026-46415

The CVE-2026-46415 issue affects the Caddy Defender plugin for Caddy, prior to version 0.10.1. Defender evaluated blocking decisions using r.RemoteAddr (the immediate peer), which could be a trusted proxy in deployments behind proxies/CDNs/load balancers, allowing clients from blocked IP ranges t...

CVE-2026-55430 Coder's subdomain workspace app routing trusts unauthenticated X-Forwarded-Host header, enabling cross-app data access

Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, the workspace app proxy resolves the target app from httpapi.RequestHost which prefers the X-Forwarded-Host header over the real Host header. No middleware...

EUVD-2026-42136

Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, the workspace app proxy resolves the target app from httpapi.RequestHost which prefers the X-Forwarded-Host header over the real Host header. No middleware...

Coder's subdomain workspace app routing trusts unauthenticated X-Forwarded-Host header, enabling cross-app data access

Summary The workspace app proxy resolves the target app from httpapi.RequestHost which prefers the X-Forwarded-Host header over the real Host header. No middleware strips X-Forwarded-Host before routing and the header is not browser-forbidden so client-side JavaScript can set it on fetch calls...

GHSA-5G4W-3VW9-478W Coder's subdomain workspace app routing trusts unauthenticated X-Forwarded-Host header, enabling cross-app data access

Summary The workspace app proxy resolves the target app from httpapi.RequestHost which prefers the X-Forwarded-Host header over the real Host header. No middleware strips X-Forwarded-Host before routing and the header is not browser-forbidden so client-side JavaScript can set it on fetch calls...

Threat Actors Probe Gitea Docker Flaw CVE-2026-20896 13 Days After Disclosure

Threat actors have been observed attempting to exploit a recently patched critical security flaw in Gitea Docker images, according to Sysdig. The vulnerability in question is CVE-2026-20896 CVSS score: 9.8, a vulnerability that stems from the DevOps platform trusting the "X-WEBAUTH-USER" header...

PT-2026-56074

Name of the Vulnerable Software and Affected Versions Coder versions prior to 2.29.17 Coder versions prior to 2.32.7 Coder versions prior to 2.33.8 Coder versions prior to 2.34.2 Description The workspace app proxy resolves the target app using the httpapi.RequestHost function, which prioritizes...

VulnCheck KEV: CVE-2026-20896

Gitea Docker image versions up to and including 1.26.2 use REVERSEPROXYTRUSTEDPROXIES= by default, allowing any source IP to impersonate a user when reverse-proxy authentication headers such as X-WEBAUTH-USER are enabled...

Exploit for CVE-2026-20896

CVE-2026-20896 Gitea's official Docker image up to and inclu...

Access Control Bypass

Overview Affected versions of this package are vulnerable to Access Control Bypass due to the default configuration of REVERSEPROXYTRUSTEDPROXIES allowing all sources. An attacker can gain unauthorized access by sending spoofed reverse-proxy authentication headers such as X-WEBAUTH-USER...

Access Control Bypass

Overview Affected versions of this package are vulnerable to Access Control Bypass due to the default configuration of REVERSEPROXYTRUSTEDPROXIES allowing all sources. An attacker can gain unauthorized access by sending spoofed reverse-proxy authentication headers such as X-WEBAUTH-USER...

Access Control Bypass

Overview Affected versions of this package are vulnerable to Access Control Bypass due to the default configuration of REVERSEPROXYTRUSTEDPROXIES allowing all sources. An attacker can gain unauthorized access by sending spoofed reverse-proxy authentication headers such as X-WEBAUTH-USER...

Access Control Bypass

Overview Affected versions of this package are vulnerable to Access Control Bypass due to the default configuration of REVERSEPROXYTRUSTEDPROXIES allowing all sources. An attacker can gain unauthorized access by sending spoofed reverse-proxy authentication headers such as X-WEBAUTH-USER...

Access Control Bypass

Overview Affected versions of this package are vulnerable to Access Control Bypass due to the default configuration of REVERSEPROXYTRUSTEDPROXIES allowing all sources. An attacker can gain unauthorized access by sending spoofed reverse-proxy authentication headers such as X-WEBAUTH-USER...

Access Control Bypass

Overview Affected versions of this package are vulnerable to Access Control Bypass due to the default configuration of REVERSEPROXYTRUSTEDPROXIES allowing all sources. An attacker can gain unauthorized access by sending spoofed reverse-proxy authentication headers such as X-WEBAUTH-USER...

Access Control Bypass

Overview Affected versions of this package are vulnerable to Access Control Bypass due to the default configuration of REVERSEPROXYTRUSTEDPROXIES allowing all sources. An attacker can gain unauthorized access by sending spoofed reverse-proxy authentication headers such as X-WEBAUTH-USER...