CVE-2026-48491

A flaw was found in Traefik, an HTTP reverse proxy and load balancer. This vulnerability allows an unauthenticated client to bypass mutual Transport Layer Security TLS enforcement, a security measure that verifies both client and server identities. The bypass occurs due to an issue in Traefik's...

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

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 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...

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-2026-50143

Name of the Vulnerable Software and Affected Versions Traefik versions 3.7.0 through 3.7.2 Description An issue in the SNICheck domain-fronting protection allows an unauthenticated client to bypass mutual TLS mTLS enforced through wildcard router TLSOptions. When a router uses a wildcard host rul...

Mozilla Firefox < 63.0

The version of Firefox installed on the remote macOS or Mac OS X host is prior to 63.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2018-26 advisory. - When manipulating user events in nested loops while opening a document through script, it is possible to...

Vulnerabilities fixed in Fortinet FortiOS and FortiProxy

Fortinet has fixed vulnerabilities in FortiOS and FortiProxy. The vulnerabilities include a stack-based buffer overflow that allows authenticated attackers to execute unauthorized code via specially crafted CLI commands. In addition, there are issues with incorrect certificate validation that all...

CVE-2025-25255

An Improperly Implemented Security Check for Standard vulnerability CWE-358 vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.11, FortiProxy 7.2 all versions, FortiProxy 7.0.1 through 7.0.22 may allow an unauthenticated proxy user ...

Fortinet Fortigate Domain fronting protection bypass in explicit web proxy (FG-IR-24-372)

The version of Fortigate installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the FG-IR-24-372 advisory. - An Improperly Implemented Security Check for Standard vulnerability CWE-358 in FortiProxy 7.6.0 through 7.6.3, 7.4 all...

EUVD-2025-34236

An Improperly Implemented Security Check for Standard vulnerability CWE-358 in FortiProxy 7.6.0 through 7.6.3, 7.4 all versions, 7.2 all versions, 7.0.1 through 7.0.21, and FortiOS 7.6.0 through 7.6.3 explicit web proxy may allow an authenticated proxy user to bypass the domain fronting protectio...

CVE-2025-25255

An Improperly Implemented Security Check for Standard vulnerability CWE-358 vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.11, FortiProxy 7.2 all versions, FortiProxy 7.0.1 through 7.0.22 may allow an unauthenticated proxy user ...

CVE-2025-25255

An Improperly Implemented Security Check for Standard vulnerability CWE-358 vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.11, FortiProxy 7.2 all versions, FortiProxy 7.0.1 through 7.0.22 may allow an unauthenticated proxy user ...

CVE-2025-25255

An Improperly Implemented Security Check for Standard vulnerability CWE-358 vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.11, FortiProxy 7.2 all versions, FortiProxy 7.0.1 through 7.0.22 may allow an unauthenticated proxy user ...

CVE-2025-25255

An Improperly Implemented Security Check for Standard vulnerability CWE-358 vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.11, FortiProxy 7.2 all versions, FortiProxy 7.0.1 through 7.0.22 may allow an unauthenticated proxy user ...

CVE-2025-25255

The CVE-2025-25255 entry describes an Improperly Implemented Security Check for Standard vulnerability (CWE-358) in Fortinet FortiOS 7.6.0–7.6.3 and FortiProxy 7.6.0–7.6.3, FortiProxy 7.4.0–7.4.11, FortiProxy 7.2 all versions, and FortiProxy 7.0.1–7.0.22. The issue allows an unauthenticated proxy...

PT-2025-41949

Name of the Vulnerable Software and Affected Versions FortiProxy versions 7.0.1 through 7.0.21 FortiProxy versions 7.2 all versions FortiProxy versions 7.4 all versions FortiProxy versions 7.6.0 through 7.6.3 Description An improperly implemented security check may allow an authenticated proxy us...

EUVD-2018-4369

Malware in sbrugna...