PT-2026-109075

urllib3 is an HTTP client library for Python. From 1.26.0 until 2.8.0, the proxy ssl context, proxy assert hostname, proxy assert fingerprint, ssl context, cert reqs, verify mode, use forwarding for https=True, and CERT NONE configuration paths fail to remain separated because target-server TLS...

Improper TLS Certificate Verification

github.com/traefik/traefik/v3 is vulnerable to improper TLS certificate verification. The vulnerability is due to incorrect handling of the proxy-ssl-verify annotation, which disables TLS verification when enabled, allowing an attacker to perform man-in-the-middle attacks on HTTPS backends...

FreeBSD : traefik -- Inverted TLS Verification Logic in Kubernetes NGINX Provider (dc7e30db-de67-11f0-b893-5404a68ad561)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the dc7e30db-de67-11f0-b893-5404a68ad561 advisory. The traefik project reports: There is a potential vulnerability in Traefik NGINX provider managing the...

SUSE CVE-2025-66491

Traefik is an HTTP reverse proxy and load balancer. Versions 3.5.0 through 3.6.2 have inverted TLS verification logic in the nginx.ingress.kubernetes.io/proxy-ssl-verify annotation. Setting the annotation to "on" intending to enable backend TLS certificate verification actually disables...

CVE-2025-66491 Traefik has Inverted TLS Verification Logic in its ingress-nginx Provider

Traefik is an HTTP reverse proxy and load balancer. Versions 3.5.0 through 3.6.2 have inverted TLS verification logic in the nginx.ingress.kubernetes.io/proxy-ssl-verify annotation. Setting the annotation to "on" intending to enable backend TLS certificate verification actually disables...

CVE-2025-66491

Traefik is an HTTP reverse proxy and load balancer. Versions 3.5.0 through 3.6.2 have inverted TLS verification logic in the nginx.ingress.kubernetes.io/proxy-ssl-verify annotation. Setting the annotation to "on" intending to enable backend TLS certificate verification actually disables...

CVE-2025-66491: Improper Certificate Validation

Traefik is an HTTP reverse proxy and load balancer. Versions 3.5.0 through 3.6.2 have inverted TLS verification logic in the nginx.ingress.kubernetes.io/proxy-ssl-verify annotation. Setting the annotation to "on" intending to enable backend TLS certificate verification actually disables...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation due to inverted logic in the InsecureSkipVerify field when processing the nginx.ingress.kubernetes.io/proxy-ssl-verify annotation. An attacker can intercept and read sensitive data by performing...

GHSA-7VWW-MVCR-X6VJ Traefik Inverted TLS Verification Logic in ingress-nginx Provider

Impact There is a potential vulnerability in Traefik NGINX provider managing the nginx.ingress.kubernetes.io/proxy-ssl-verify annotation. The provider inverts the semantics of the nginx.ingress.kubernetes.io/proxy-ssl-verify annotation. Setting the annotation to "on" intending to enable backend T...

Traefik Inverted TLS Verification Logic in ingress-nginx Provider

Impact There is a potential vulnerability in Traefik NGINX provider managing the nginx.ingress.kubernetes.io/proxy-ssl-verify annotation. The provider inverts the semantics of the nginx.ingress.kubernetes.io/proxy-ssl-verify annotation. Setting the annotation to "on" intending to enable backend T...

Siemens SIMATIC S7-1500 Improper Certificate Validation (CVE-2021-28363)

The urllib3 library 1.26.x before 1.26.4 for Python omits SSL certificate validation in some cases involving HTTPS to HTTPS proxies. The initial connection to the HTTPS proxy if an SSLContext isn't given via proxyconfig doesn't verify the hostname of the certificate. This means certificates for...

EUVD-2018-17282

Malware in sbrugna...

K46940010: TMM vulnerability CVE-2018-5513

Security Advisory Description A malformed Transport Layer Security TLS handshake causes the Traffic Management Microkernel TMM to stop responding, leading to a disruption of service. This issue is only exposed on the data plane when a Proxy SSL configuration is enabled. The control plane is not...

SUSE CVE-2009-1836

Mozilla Firefox before 3.0.11, Thunderbird before 2.0.0.22, and SeaMonkey before 1.1.17 use the HTTP Host header to determine the context of a document provided in a non-200 CONNECT response from a proxy server, which allows man-in-the-middle attackers to execute arbitrary web script by modifying...

SUSE CVE-2018-8059

The Djelibeybi configuration examples for use of NGINX in SUSE Portus 2.3, when applied to certain configurations involving Docker Compose, have a Missing SSL Certificate Validation issue because no proxyssl directives are used...

httpd security, bug fix, and enhancement update

2.4.6-93.0.1 - replace index.html with Oracles index page oracleindex.html 2.4.6-93 - Resolves: 1677496 - CVE-2018-17199 httpd: modsessioncookie does not respect expiry time 2.4.6-92 - htpasswd: add SHA-2 crypt support 1486889 2.4.6-91 - Resolves: 1630886 - scriptlet can fail if hostname is not...

PT-2019-20161

Name of the Vulnerable Software and Affected Versions Django versions 1.11 before 1.11.22 Django versions 2.1 before 2.1.10 Django versions 2.2 before 2.2.3 Description An issue was discovered where an HTTP request is not redirected to HTTPS when the SECURE PROXY SSL HEADER and SECURE SSL REDIREC...

F5 Networks BIG-IP : TMM vulnerability (K46940010)

A malformed Transport Layer Security TLS handshake causes the Traffic Management Microkernel TMM to stop responding, leading to a disruption of service. This issue is only exposed on the data plane when a Proxy SSL configuration is enabled. The control plane is not impacted by this issue...

CVE-2018-5513

On F5 BIG-IP 13.1.0-13.1.0.3, 13.0.0, 12.1.0-12.1.3.3, 11.6.1-11.6.3.1, 11.5.1-11.5.5, or 11.2.1, a malformed TLS handshake causes TMM to crash leading to a disruption of service. This issue is only exposed on the data plane when Proxy SSL configuration is enabled. The control plane is not impact...

CVE-2018-5513

On F5 BIG-IP 13.1.0-13.1.0.3, 13.0.0, 12.1.0-12.1.3.3, 11.6.1-11.6.3.1, 11.5.1-11.5.5, or 11.2.1, a malformed TLS handshake causes TMM to crash leading to a disruption of service. This issue is only exposed on the data plane when Proxy SSL configuration is enabled. The control plane is not impact...