CVE-2026-32305

Traefik is an HTTP reverse proxy and load balancer. Versions 2.11.40 and below, 3.0.0-beta1 through 3.6.11, and 3.7.0-ea.1 are vulnerable to mTLS bypass through the TLS SNI pre-sniffing logic related to fragmented ClientHello packets. When a TLS ClientHello is fragmented across multiple records,...

CVE-2026-32305

Traefik is an HTTP reverse proxy and load balancer. Versions 2.11.40 and below, 3.0.0-beta1 through 3.6.11, and 3.7.0-ea.1 are vulnerable to mTLS bypass through the TLS SNI pre-sniffing logic related to fragmented ClientHello packets. When a TLS ClientHello is fragmented across multiple records,...

CVE-2026-32305 Traefik mTLS bypass via fragmented ClientHello SNI extraction failure

Traefik is an HTTP reverse proxy and load balancer. Versions 2.11.40 and below, 3.0.0-beta1 through 3.6.11, and 3.7.0-ea.1 are vulnerable to mTLS bypass through the TLS SNI pre-sniffing logic related to fragmented ClientHello packets. When a TLS ClientHello is fragmented across multiple records,...

CVE-2026-32305

Traefik is an HTTP reverse proxy and load balancer. Versions 2.11.40 and below, 3.0.0-beta1 through 3.6.11, and 3.7.0-ea.1 are vulnerable to mTLS bypass through the TLS SNI pre-sniffing logic related to fragmented ClientHello packets. When a TLS ClientHello is fragmented across multiple records,...

CVE-2026-32305

Traefik (HTTP reverse proxy/load balancer) versions affected: 2.11.40 and earlier; 3.0.0-beta1 through 3.6.11; 3.7.0-ea.1 are vulnerable to a bypass of mTLS enforcement via TLS ClientHello SNI pre-sniffing when ClientHello messages are fragmented. In this scenario, SNI extraction may EOF and retu...

CVE-2026-32305 Traefik mTLS bypass via fragmented ClientHello SNI extraction failure

Traefik is an HTTP reverse proxy and load balancer. Versions 2.11.40 and below, 3.0.0-beta1 through 3.6.11, and 3.7.0-ea.1 are vulnerable to mTLS bypass through the TLS SNI pre-sniffing logic related to fragmented ClientHello packets. When a TLS ClientHello is fragmented across multiple records,...

Security Bulletin: Command Injection Vulnerability in FastMCP server_name Field Enables Arbitrary Command Execution on Windows affects watsonx.data

Summary FastMCP is the standard framework for building MCP applications. Versions prior to 2.13.0, a command-injection vulnerability lets any attacker who can influence the servername field of an MCP execute arbitrary OS commands on Windows hosts that run fastmcp install cursor. This can affect...

Traefik 安全漏洞

Traefik is an open-source reverse proxy and load balancing tool developed by Traefik. Versions of Traefik such as 2.11.40, 3.0.0-beta1 to 3.6.11, and 3.7.0-ea.1 contain security vulnerabilities. These vulnerabilities stem from issues with the TLS SNI pre-sniffing logic, which may allow for...

Fixed in Apache Tomcat 9.0.116

Moderate: The fix forCVE-2025-66614 was incomplete CVE-2026-32990 The validation of SNI name and host name did not take account of possible differences in case allowing the strict SNI checks to be bypassed. This was fixed with commit 95f77782. This issue was reported to the Tomcat security team o...

pyOpenSSL allows TLS connection bypass via unhandled callback exception in set_tlsext_servername_callback

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CVE-2026-27448

A flaw was found in pyOpenSSL. The settlsextservernamecallback callback function can be used to implement Server Name Indication SNI during the TLS handshake. When the callback raises an unhandled exception, the handshake incorrectly proceeds instead of terminating. This fail-open behavior can...

DEBIAN-CVE-2026-27448

pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 0.14.0 and prior to version 26.0.0, if a user provided callback to settlsextservernamecallback raised an unhandled exception, this would result in a connection being accepted. If a user was relying on this callback for...

CVE-2026-27448

pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 0.14.0 and prior to version 26.0.0, if a user provided callback to settlsextservernamecallback raised an unhandled exception, this would result in a connection being accepted. If a user was relying on this callback for...

CVE-2026-27448 pyOpenSSL allows TLS connection bypass via unhandled callback exception in set_tlsext_servername_callback

pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 0.14.0 and prior to version 26.0.0, if a user provided callback to settlsextservernamecallback raised an unhandled exception, this would result in a connection being accepted. If a user was relying on this callback for...

CVE-2026-27448 pyOpenSSL allows TLS connection bypass via unhandled callback exception in set_tlsext_servername_callback

pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 0.14.0 and prior to version 26.0.0, if a user provided callback to settlsextservernamecallback raised an unhandled exception, this would result in a connection being accepted. If a user was relying on this callback for...

TLS 1.3 SNI Scanner

A command-line PHP vulnerability testing tool was developed to analyze TLS behavior through observation and logical reasoning, rather than relying on fixed rules or CVE numbers. The tool establishes multiple TLS connections to the same server and port using different SNI values. It then compares...

BIT-TOMCAT-2025-66614 Apache Tomcat: Client certificate verification bypass due to virtual host mapping

Improper Input Validation vulnerability. This issue affects Apache Tomcat: from 11.0.0 through 11.0.14, from 10.1.0 through 10.1.49, from 9.0.0 through 9.0.112. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Older EOL versions...

CVE-2019-25349 scadaApp for iOS 1.1.4.0 - 'Servername' Denial of Service

ScadaApp for iOS 1.1.4.0 contains a denial of service vulnerability that allows attackers to crash the application by inputting an oversized buffer in the Servername field. Attackers can paste a 257-character buffer during login to trigger an application crash on iOS devices...

FlowChief ScadaApp 安全漏洞

FlowChief ScadaApp is an industrial-grade mobile application developed by the German company FlowChief. Version 1.1.4.0 of FlowChief ScadaApp contains a security vulnerability. This vulnerability allows attackers to cause the application to crash by entering an excessively long buffer value in th...

Apache Tomcat 10.1.0.M1 < 10.1.50 multiple vulnerabilities

The version of Tomcat installed on the remote host is prior to 10.1.50. It is, therefore, affected by multiple vulnerabilities as referenced in the fixedinapachetomcat10.1.50security-10 advisory. - Improper Input Validation vulnerability. This issue affects Apache Tomcat: from 11.0.0-M1 through...