CVE-2026-85597

A flaw was found in Traefik. This vulnerability allows unauthenticated attackers to bypass client-certificate authentication. By creating conflicting Transport Layer Security TLS options on multi-host routers, attackers can exploit shared TLS resolution across multiple hostnames in a single route...

CVE-2026-85597

Traefik before v2.11.55 and v3.0.0 through v3.7.10 contain a TLS option conflict resolution vulnerability that allows unauthenticated attackers to bypass client-certificate authentication by creating conflicting TLS options on multi-host routers. Attackers can reach protected backends by exploiti...

PT-2026-85496

Traefik versions = v3.7.0 and = v3.7.10 contain an authentication bypass in the Kubernetes Ingress NGINX provider. The TLS option generated for an Ingress carrying the nginx.ingress.kubernetes.io/auth-tls-secret annotation was named after the Ingress namespace and name. As a result, two Ingress...

Important: Red Hat Security Advisory: nodejs:24 security, bug fix, and enhancement update

An update for the nodejs:24 module is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

undici: undici: Man-in-the-Middle attack via ignored TLS options with SOCKS5 proxy

A flaw was found in undici. When undici's ProxyAgent is configured with a SOCKS5 proxy Uniform Resource Identifier URI, it silently ignores Transport Layer Security TLS options, such as custom Certificate Authorities CAs. This allows a remote attacker to perform a Man-in-the-Middle MITM attack,...

undici: undici: Man-in-the-Middle attack via ignored TLS options with SOCKS5 proxy

A flaw was found in undici. When undici's ProxyAgent is configured with a SOCKS5 proxy Uniform Resource Identifier URI, it silently ignores Transport Layer Security TLS options, such as custom Certificate Authorities CAs. This allows a remote attacker to perform a Man-in-the-Middle MITM attack,...

OPENSUSE-RU-2026:21160-1 Recommended update for dnscrypt-proxy

This update for dnscrypt-proxy fixes the following issues: Changes in dnscrypt-proxy: - Update to version 2.1.16 The "tlsciphersuite" option is now a no-op. Modern TLS stacks no longer expose cipher suite selection in a meaningful way, and the option had become misleading A log size of 0 no longe...

Astra Linux – Vulnerability in curl

When performing multi-threaded LDAPS transfers LDAP over TLS with libcurl, changing TLS options in one thread will inadvertently change them globally, and thus may also affect other concurrently running transfers. Disabling certificate verification for a specific transfer can unintentionally...

CVE-2026-53622

CVE-2026-53622 concerns Traefik’s HTTP/3 (QUIC) TLS configuration selection. When HTTP/3 is enabled, the TLS handshake uses an exact, case-sensitive lookup of the SNI to choose a TLS config, which fails to match wildcard hosts or mixed-case hostnames. If a router enforces mTLS via TLSOptions and ...

CVE-2026-53622 Traefik: HTTP/3 mTLS bypass via exact SNI TLSOptions lookup for wildcard and mixed-case hosts

Traefik is an HTTP reverse proxy and load balancer. Versions prior to 3.7.3, 3.6.18, and 2.11.51 have 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...

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-2026-9697

A flaw was found in undici. When undici's ProxyAgent is configured with a SOCKS5 proxy Uniform Resource Identifier URI, it silently ignores Transport Layer Security TLS options, such as custom Certificate Authorities CAs. This allows a remote attacker to perform a Man-in-the-Middle MITM attack,...

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,...

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...

Nessus Network Monitor < 6.5.4 Multiple Vulnerabilities (TNS-2026-14)

According to its self-reported version, the Nessus Network Monitor running on the remote host is prior to 6.5.4. It is, therefore, affected by multiple vulnerabilities as referenced in the TNS-2026-14 advisory. - An integer overflow can be triggered in SQLite's concatws function. The resulting,...

K000160935: Curl vulnerability CVE-2025-14017

Security Advisory Description When doing multi-threaded LDAPS transfers LDAP over TLS with libcurl, changing TLS options in one thread would inadvertently change them globally and therefore possibly also affect other concurrently setup transfers. Disabling certificate verification for a specific...

EulerOS Virtualization 2.10.0 : curl (EulerOS-SA-2026-1552)

According to the versions of the curl packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : When an OAuth2 bearer token is used for an HTTPS transfer, and that transfer performs a cross-protocol redirect to a second URL that...

EulerOS 2.0 SP12 : curl (EulerOS-SA-2026-1355)

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : When doing multi-threaded LDAPS transfers LDAP over TLS with libcurl, changing TLS options in one thread would inadvertently change them globally an...

EulerOS Virtualization 2.12.0 : curl (EulerOS-SA-2026-1478)

According to the versions of the curl packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : When doing multi-threaded LDAPS transfers LDAP over TLS with libcurl,changing TLS options in one thread would inadvertently change th...

USN-8062-2 curl vulnerabilities

USN-8062-1 fixed vulnerabilities in curl. This update provides the corresponding update for CVE-2025-14017, CVE-2025-15079, and CVE-2025-15224 for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. Original advisory details: It was discovered that curl incorrectly handled...