CVE-2026-53622

Traefik is an HTTP reverse proxy and load balancer. Prior to 3.7.3, there is a critical vulnerability in Traefik's HTTP/3 QUIC TLS configuration selection that allows unauthenticated clients to bypass router-specific mTLS enforcement. When HTTP/3 is enabled on an entrypoint, the TLS handshake...

CVE-2026-48491

CVE-2026-48491 (Traefik) describes a high-severity vulnerability in Traefik 3.7.0–3.7.3 where SNICheck ignores wildcard TLSOptions mappings. An unauthenticated client can complete a TLS handshake with a permissive SNI on the same entrypoint and then send a Host header targeting a wildcard-protect...

CVE-2026-48491 Traefik: SNICheck ignores wildcard TLSOptions mappings, allowing domain-fronted mTLS bypass

Traefik is an HTTP reverse proxy and load balancer. From 3.7.0 until 3.7.3, there is a high severity vulnerability in Traefik's domain-fronting protection SNICheck that allows an unauthenticated client to bypass mutual TLS enforced through wildcard router TLSOptions. When a router uses a wildcard...

CVE-2026-48491 Traefik: SNICheck ignores wildcard TLSOptions mappings, allowing domain-fronted mTLS bypass

Traefik is an HTTP reverse proxy and load balancer. From 3.7.0 until 3.7.3, there is a high severity vulnerability in Traefik's domain-fronting protection SNICheck that allows an unauthenticated client to bypass mutual TLS enforced through wildcard router TLSOptions. When a router uses a wildcard...

EUVD-2026-37990

Canonical MicroCeph versions from the squid and tentacle track are vulnerable to a path traversal issue in the remote-import API. Holders of a trusted cluster mTLS certificate such as enrolled cluster members or join token can manipulate files in an imported remote cluster within the...

CVE-2026-10720

CVE-2026-10720 affects Canonical MicroCeph versions on squid and tentacle tracks. A path traversal in the remote-import API allows holders of a trusted cluster mTLS certificate or a join token to manipulate files inside the imported remote cluster confined at /var/snap/microceph, potentially caus...

GHSA-9CR8-Q42Q-G8M7 Traefik: HTTP/3 mTLS bypass via exact SNI TLSOptions lookup for wildcard and mixed-case hosts

Summary There is a critical vulnerability in Traefik's HTTP/3 QUIC TLS configuration selection that allows unauthenticated clients to bypass router-specific mTLS enforcement. When HTTP/3 is enabled on an entrypoint, the TLS handshake selects the applicable TLS configuration through an exact,...

Traefik: HTTP/3 mTLS bypass via exact SNI TLSOptions lookup for wildcard and mixed-case hosts

Summary There is a critical vulnerability in Traefik's HTTP/3 QUIC TLS configuration selection that allows unauthenticated clients to bypass router-specific mTLS enforcement. When HTTP/3 is enabled on an entrypoint, the TLS handshake selects the applicable TLS configuration through an exact,...

Traefik: SNICheck ignores wildcard TLSOptions mappings, allowing domain-fronted mTLS bypass

Summary There is a high severity vulnerability in Traefik's domain-fronting protection SNICheck that allows an unauthenticated client to bypass mutual TLS enforced through wildcard router TLSOptions. When a router uses a wildcard host rule such as Host.example.com with stricter TLS options for...

Authentication Bypass Using an Alternate Path or Channel

Overview Affected versions of this package are vulnerable to Authentication Bypass Using an Alternate Path or Channel in the SNICheck process. An attacker can gain unauthorized access to protected backends by completing a TLS handshake using a permissive SNI and then sending an HTTP Host header...

PT-2026-50163

Name of the Vulnerable Software and Affected Versions Traefik versions 3.6.17 through 3.7.1 Description An issue in the HTTP/3 QUIC TLS configuration selection allows unauthenticated clients to bypass router-specific mutual TLS mTLS enforcement. When HTTP/3 is enabled, the TLS handshake uses an...

CVE-2026-27314

Privilege escalation in Apache Cassandra 5.0 on an mTLS environment using MutualTlsAuthenticator allows a user with only CREATE permission to associate their own certificate identity with an arbitrary role, including a superuser role, and authenticate as that role via ADD IDENTITY. Users are...

GHSA-C82X-F4XR-QV33 epa4all-client: Unauthenticated REST API for Patient Record Writes

Impact Any network-reachable caller can write arbitrary documents to any patient's electronic health record accessible by the institution's SMC-B card. In a misconfigured deployment e.g., following the production Docker example in the README, this is exploitable from the local network without...

OPENSUSE-SU-2026:20854-1 Security update for rqlite

This update for rqlite fixes the following issues: Changes in rqlite: - Update to version 10.2.0: Support verifying mTLS peer Common Name Console supports restore from SQLite data Console "count rows" respects current Tables Expand/Collapse state Console supports dropping indexes Further Console...

EUVD-2026-33274

A flaw was found in the OpenShift Router. When a Route has insecureEdgeTerminationPolicy set to Allow, the HTTP frontend does not remove X-SSL-Client- headers from incoming requests. This allows an unauthenticated attacker to send plain HTTP requests with crafted X-SSL-Client- headers. As a resul...

CVE-2026-46579

A flaw was found in the OpenShift Router. When a Route has insecureEdgeTerminationPolicy set to Allow, the HTTP frontend does not remove X-SSL-Client- headers from incoming requests. This allows an unauthenticated attacker to send plain HTTP requests with crafted X-SSL-Client- headers. As a resul...

CVE-2026-46579

OpenShift Router flaw: when Route.insecureEdgeTerminationPolicy is Allow, the HTTP frontend does not strip X-SSL-Client-* headers, enabling an unauthenticated attacker to craft requests that bypass mutual TLS authentication by impersonating client certificate identities. Affected component: OpenS...

IBM HTTP Server 8.5.0.0 < 8.5.5.30 / 9.0.0.0 < 9.0.5.29 Multiple Vulnerabilities (7274065)

The version of IBM HTTP Server running on the remote host is affected by multiple vulnerabilities: - IBM HTTP Server is vulnerable to denial of service and a potential remote code execution due to improper input validation. CVE-2026-9170 - IBM HTTP Server is vulnerable to remote code execution an...

EUVD-2026-31905

IBM HTTP Server 8.5, and 9.0 is vulnerable to remote code execution and denial of service in configurations with TLS mutual authentication client authentication...

Apache Tomcat: Apache Tomcat: Authentication bypass via client certificate misconfiguration

A flaw was found in Apache Tomcat where OCSP-based certificate validation may incorrectly soft-fail during CLIENTCERT authentication, even when soft-fail is disabled, under certain FFM-related execution paths. This can result in client certificates being accepted despite failed or unverifiable...