SUSE CVE-2026-114639

Traefik 2.11.0 before 2.11.58 and 3.0.0 before 3.7.14 contains an authentication bypass because a first request preauthenticated with an Authorization: Negotiate token authenticates a socket in the globally shared backend connection pool, which is never isolated. Unauthenticated attackers on...

CVE-2026-114639

Traefik 2.11.0 before 2.11.58 and 3.0.0 before 3.7.14 contains an authentication bypass because a first request preauthenticated with an Authorization: Negotiate token authenticates a socket in the globally shared backend connection pool, which is never isolated. Unauthenticated attackers on...

EUVD-2026-107894

Traefik 2.11.0 before 2.11.58 and 3.0.0 before 3.7.14 contains an authentication bypass because a first request preauthenticated with an Authorization: Negotiate token authenticates a socket in the globally shared backend connection pool, which is never isolated. Unauthenticated attackers on...

CVE-2026-114639

Traefik 2.11.0 before 2.11.58 and 3.0.0 before 3.7.14 contains an authentication bypass because a first request preauthenticated with an Authorization: Negotiate token authenticates a socket in the globally shared backend connection pool, which is never isolated. Unauthenticated attackers on...

CVE-2026-114639

Traefik 2.11.0 before 2.11.58 and 3.0.0 before 3.7.14 contains an authentication bypass because a first request preauthenticated with an Authorization: Negotiate token authenticates a socket in the globally shared backend connection pool, which is never isolated. Unauthenticated attackers on...

PT-2026-120934

Name of the Vulnerable Software and Affected Versions Traefik versions 2.11.0 through 2.11.57 Traefik versions 3.0.0 through 3.7.13 Description An authentication bypass exists due to the lack of isolation in the globally shared backend connection pool. When a request is preauthenticated using an...

Traefik Labs Traefik authorization issue vulnerability

Traefik Labs Traefik versions from 2.11.0 up to 2.11.58 and from 3.0.0 up to 3.7.14 contain an authorization issue vulnerability. This vulnerability arises because the first request using Authorization: Negotiate for pre-authentication attempts to authenticate against a global shared backend...

UBUNTU-CVE-2026-90678

An issue was discovered in HAProxy 3.3.0 through 3.4.4 and in 3.5-dev1 through 3.5-dev5. Exploitation requires an HTTP/3 frontend: HAProxy must be built with QUIC support and configured with a QUIC bind listener, and the affected traffic must reach a backend over HTTP/1.1 using chunked transfer...

EUVD-2026-76943

An issue was discovered in HAProxy 3.3.0 through 3.4.4 and in 3.5-dev1 through 3.5-dev5. Exploitation requires an HTTP/3 frontend: HAProxy must be built with QUIC support and configured with a QUIC bind listener, and the affected traffic must reach a backend over HTTP/1.1 using chunked transfer...

PT-2026-90786

Name of the Vulnerable Software and Affected Versions HAProxy versions 3.3.0 through 3.4.4 HAProxy versions 3.5-dev1 through 3.5-dev5 Description An issue exists in HAProxy when using an HTTP/3 frontend built with QUIC support and a QUIC bind listener, where traffic is routed to a backend over...

gRPC Security Vulnerabilities

gRPC is a modern, open-source, high-performance remote procedure call RPC framework from gRPC Open Source. A security vulnerability exists in gRPC that stems from the fact that a malicious request may cause the connection between the proxy and the backend to terminate...

Which SNIP will be selected by NetScaler to connect with backend server

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CVE-2020-7238

A flaw was found in Netty, where it mishandles Transfer-Encoding whitespace. This flaw allows HTTP Request Smuggling. Mitigation Use HTTP/2 instead clear boundaries between requests Disable reuse of backend connections eg. http-reuse never in HAProxy or whatever equivalent LB settings...

CVE-2021-36740

A flaw was found in Varnish. The Varnish Cache, with HTTP/2 enabled, allows request smuggling and VCL authorization bypass via a large Content-Length header for a POST request. As a result, this flaw allows the information on the Varnish cache to be poisoned. The highest threat from this...

httpd: allow connecting via SSL to a backend worker when the backend keystore file's ID is 'unknown'

A flaw was found in JBCS httpd in version 2.4.37 SP3, where it uses a back-end worker SSL certificate with the keystore file's ID is 'unknown'. The validation of the certificate whether CN and hostname are matching stopped working and allow connecting to the back-end work. The highest threat from...

Denial Of Service (DoS)

nbdkit is vulnerable to denial of service. The vulnerability exists due to the premature opening of back-end connection...

OPENSUSE-SU-2020:0379-1 Security update for nghttp2

This update for nghttp2 fixes the following issues: nghttp2 was update to version 1.40.0 bsc1166481 - lib: Add nghttp2checkauthority as public API - lib: Fix the bug that stream is closed with wrong error code - lib: Faster huffman encoding and decoding - build: Avoid filename collision of static...

OPENSUSE-SU-2019:1128-1 Security update for pdns

This update for pdns fixes the following issue: Security issue fixed: - CVE-2019-3871: Fixed an insufficient validation in the HTTP remote backend which could allow a remote user to cause the HTTP backend to connect to an attacker-specified host instead of the configured one bsc1129734...

CVE-2018-1002105

CVE-2018-1002105 affects Kubernetes: before versions v1.10.11, v1.11.5, and v1.12.3, the kube-apiserver mishandles error responses to proxied upgrade requests. This flaw lets specially crafted requests establish a connection through the API server to backends and then send arbitrary requests over...

EDT Security using DTLS

EDT Security using DTLS As from XenApp and XenDesktop 7.16 VDAs, DTLS is supported refer to the Windows OS VDA 7.16 Schannel library support for DTLS article. This means that backend connection between NetScaler and the VDA could optionally use DTLS. In addition, Receiver could optionally use DTL...