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...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: nginx (UTSA-2026-014292)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-014292 advisory. A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security TLS servers. An attacker with a man-in-the-middle MI...

PT-2026-36177

Name of the Vulnerable Software and Affected Versions Traefik versions prior to 2.11.43 Traefik versions prior to 3.6.14 Traefik versions prior to 3.7.0-rc.2 Description An authentication bypass exists in the ForwardAuth middleware of Traefik, an HTTP reverse proxy and load balancer. This occurs...

CVE-2026-40481

monetr is a budgeting application for recurring expenses. In versions 1.12.3 and below, the public Stripe webhook endpoint buffers the entire request body into memory before validating the Stripe signature. A remote unauthenticated attacker can send oversized POST payloads to cause uncontrolled...

BIT-AUTHENTIK-2023-36456 Authentik lacks Proxy IP headers validation

authentik is an open-source Identity Provider. Prior to versions 2023.4.3 and 2023.5.5, authentik does not verify the source of the X-Forwarded-For and X-Real-IP headers, both in the Python code and the go code. Only authentik setups that are directly accessible by users without a reverse proxy a...

Linux Distros Unpatched Vulnerability : CVE-2026-26961

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Multipart::Parser extracts the boundary parameter from...

EUVD-2026-18368

Rack's greedy multipart boundary parsing can cause parser differentials and WAF bypass...

GHSA-VGPV-F759-9WX3 Rack's greedy multipart boundary parsing can cause parser differentials and WAF bypass.

Summary Rack::Multipart::Parser extracts the boundary parameter from multipart/form-data using a greedy regular expression. When a Content-Type header contains multiple boundary parameters, Rack selects the last one rather than the first. In deployments where an upstream proxy, WAF, or intermedia...

Rack's greedy multipart boundary parsing can cause parser differentials and WAF bypass.

Summary Rack::Multipart::Parser extracts the boundary parameter from multipart/form-data using a greedy regular expression. When a Content-Type header contains multiple boundary parameters, Rack selects the last one rather than the first. In deployments where an upstream proxy, WAF, or intermedia...

CVE-2026-26961

Rack vulnerable component: Rack::Multipart::Parser extracts multipart boundary from Content-Type using a greedy regex, causing last-boundary selection when multiple boundaries exist. This can allow smuggling of multipart content past upstream validation. Affected versions are before 2.2.23, 3.1.2...

CVE-2026-26961 Rack: Multipart Boundary Parsing Ambiguity allowing WAF Bypass

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Multipart::Parser extracts the boundary parameter from multipart/form-data using a greedy regular expression. When a Content-Type header contains multiple boundary parameters, Rack selects the last one...

nginx: NGINX: Data injection via man-in-the-middle attack on TLS proxied connections

A flaw was found in NGINX. When NGINX is configured to proxy to upstream Transport Layer Security TLS servers, An attacker with a man-in-the-middle MITM position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data into the response...

BIT-NGINX-GATEWAY-2026-1642 NGINX vulnerability

A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security TLS servers. An attacker with a man-in-the-middle MITM position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data in...

Ubuntu 22.04 LTS / 24.04 LTS / 25.10 : nginx vulnerability (USN-8038-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.10 host has packages installed that are affected by a vulnerability as referenced in the USN-8038-1 advisory. It was discovered that nginx incorrectly handled proxying to upstream TLS servers. An attacker could possibly use this issue to insert plain...

Debian dsa-6131 : libnginx-mod-http-geoip - security update

The remote Debian 12 / 13 host has packages installed that are affected by a vulnerability as referenced in the dsa-6131 advisory. - ------------------------------------------------------------------------- Debian Security Advisory DSA-6131-1 [email protected] https://www.debian.org/security/...

UBUNTU-CVE-2026-1642

A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security TLS servers. An attacker with a man-in-the-middle MITM position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data in...

CVE-2026-1642

The CVE-2026-1642 entry describes a vulnerability in NGINX OSS and NGINX Plus when configured to proxy to upstream TLS servers. Under a MITM position on the upstream side and conditions outside the attacker’s control, an attacker may inject plain text data into the response from an upstream proxi...

PT-2026-6052

Name of the Vulnerable Software and Affected Versions NGINX OSS and NGINX Plus affected versions not specified F5 BIG-IP affected versions not specified Description A flaw exists in NGINX OSS and NGINX Plus when used to proxy to upstream Transport Layer Security TLS servers. An attacker positione...

EUVD-2021-1600

Malware in sbrugna...