CVE-2020-8289

CVE-2020-8289 – Remote Code Execution as SYSTEM/root via Backblaze Summary Name: Remote Code Execution as SYSTEM/root via Backblaze CVE: CVE-2020-8289 Discoverer: Jason Geffner Vendor: Backblaze Product: Backblaze for Windows and Backblaze for macOS Risk: Critical Discovery Date: 2020-03-13...

Improper Certificate Validation

Apache HttpComponents Client is vulnerable to Improper Certificate Validation. The vulnerability is due to the HostnameVerificationPolicyBUILTIN setting being ineffective in the asynchronous HttpClient, which allows an attacker capable of intercepting and modifying traffic to impersonate the...

CVE-2025-26465

CVE-2025-26465 The OpenSSH client contains a logic error between versions 6.8p1 to 9.9p1 inclusive that makes it vulnerable to an active MitM attack if the VerifyHostKeyDNS option is enabled, allowing a malicious interloper to impersonate a legitimate server when a client attempts to connect to i...

CVE-2026-59638

A flaw was found in Bouncy Castle for Java. The Java Secure Socket Extension JSSE hostname verifier incorrectly enables the Common Name CN fallback by default, despite it being documented as an opt-in feature. This misconfiguration could allow a remote attacker to bypass proper hostname validatio...

netty-handler: Netty: Improper trust manager handling leads to hostname verification bypass

A flaw was found in Netty, a network application framework. This vulnerability allows a remote attacker to bypass hostname verification due to improper handling of user-supplied trust managers. When a client is configured with a plain X.509 Trust Manager X509TrustManager, it fails to perform...

netty-handler: Netty: Improper trust manager handling leads to hostname verification bypass

A flaw was found in Netty, a network application framework. This vulnerability allows a remote attacker to bypass hostname verification due to improper handling of user-supplied trust managers. When a client is configured with a plain X.509 Trust Manager X509TrustManager, it fails to perform...

org.apache.httpcomponents.client5/httpclient5: Apache HttpComponents Client: Server impersonation via improper TLS hostname verification

A flaw was found in the asynchronous version of Apache HttpComponents Client. This improper Transport Layer Security TLS hostname verification vulnerability allows a remote attacker to intercept and modify network traffic. By presenting a valid certificate for a different domain, an attacker can...

CVE-2026-76131

Use of hard-coded credentials issue exists in VOCALOID6 , which may allow an attacker to impersonate a legitimate VOCALOID6 Editor and gain access to Yamaha's activation and content servers...

CVE-2026-76131

Hard-coded credentials in VOCALOID6 Editor allow network-based impersonation of the legitimate client, enabling unauthorized access to Yamaha's activation and content servers. CVSS 3.1 scores this MEDIUM (5.3). No exploit code or in-the-wild exploitation is documented; monitor Yamaha and JPCERT a...

SUSE CVE-2026-71290

Improper TLS hostname verification vulnerability in Apache HttpComponents Client 5.4 or newer. HostnameVerificationPolicyBUILTIN setting has no effect when used with the async version of HttpClient. An attacker that can intercept and modify traffic between the client and the server can impersonat...

Linux Distros Unpatched Vulnerability : CVE-2026-71290

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Improper TLS hostname verification vulnerability in Apache HttpComponents Client 5.4 or newer. HostnameVerificationPolicyBUILTIN setting has no effect when used...

DEBIAN-CVE-2026-71290

Improper TLS hostname verification vulnerability in Apache HttpComponents Client 5.4 or newer. HostnameVerificationPolicyBUILTIN setting has no effect when used with the async version of HttpClient. An attacker that can intercept and modify traffic between the client and the server can impersonat...

UBUNTU-CVE-2026-71290

Improper TLS hostname verification vulnerability in Apache HttpComponents Client 5.4 or newer. HostnameVerificationPolicyBUILTIN setting has no effect when used with the async version of HttpClient. An attacker that can intercept and modify traffic between the client and the server can impersonat...

CVE-2026-71290

Improper TLS hostname verification vulnerability in Apache HttpComponents Client 5.4 or newer. HostnameVerificationPolicyBUILTIN setting has no effect when used with the async version of HttpClient. An attacker that can intercept and modify traffic between the client and the server can impersonat...

CVE-2026-71290

Improper TLS hostname verification vulnerability in Apache HttpComponents Client 5.4 or newer. HostnameVerificationPolicyBUILTIN setting has no effect when used with the async version of HttpClient. An attacker that can intercept and modify traffic between the client and the server can impersonat...

The vulnerability of the tls_match_hostname() function in the libfreerdp/crypto/tls.c file of the RDP client FreeRDP allows a attacker to replace the RDP server.

The vulnerability of the tlsmatchhostname function in the libfreerdp/crypto/tls.c file of the RDP client FreeRDP is related to errors in the certificate authentication process. Exploiting this vulnerability could allow an attacker to remotely replace the RDP server...

netty-handler: Netty: Improper trust manager handling leads to hostname verification bypass

A flaw was found in Netty, a network application framework. This vulnerability allows a remote attacker to bypass hostname verification due to improper handling of user-supplied trust managers. When a client is configured with a plain X.509 Trust Manager X509TrustManager, it fails to perform...

CVE-2026-67293

A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol RDP. The software's Transport Layer Security TLS hostname matcher incorrectly validates wildcard certificates, allowing it to accept certificates for multi-label subdomains that should not be covered. This...

SUSE CVE-2026-45711

Mailpit is an email testing tool and API for developers. Prior to version 1.30.0, the mailpit dump --http sub-command downloads every message from a remote Mailpit instance and writes each one as .eml inside the user-supplied output directory. The message ID field is taken verbatim from the JSON...

CVE-2026-38974

A flaw was found in Dulwich. The contrib/paramikovendor.py component is missing Secure Shell SSH host key verification. This vulnerability allows a remote attacker to impersonate a legitimate Git server. By doing so, the attacker could potentially intercept sensitive information or execute...