PT-2026-35539

Name of the Vulnerable Software and Affected Versions Spring Boot versions 4.0.0 through 4.0.5 Spring Boot versions 3.5.0 through 3.5.13 Description When configured to use an SSL bundle, the RabbitMQ auto-configuration fails to perform hostname verification during the connection process to the...

PT-2026-35546

Name of the Vulnerable Software and Affected Versions Spring Boot versions 4.0.0 through 4.0.5 Spring Boot versions 3.5.0 through 3.5.13 Spring Boot versions 3.4.0 through 3.4.15 Spring Boot versions 3.3.0 through 3.3.18 Spring Boot versions 2.7.0 through 2.7.32 Spring Boot versions prior to 2.7....

Elasticsearch auto-configuration with an SSL bundle disables TLS hostname verification

When configured to use an SSL bundle, Spring Boot's Elasticsearch auto-configuration does not perform hostname verification when connecting to the Elasticsearch server...

Oracle Identity Manager (April 2026 CPU)

The 14.1.2.1.0 version of Identity Manager installed on the remote host are affected by multiple vulnerabilities as referenced in the April 2026 CPU advisory: - Vulnerability in the Oracle Identity Manager product of Oracle Fusion Middleware component: Identity Console. Easily exploitable...

RabbitMQ auto-configuration with an SSL bundle disables TLS hostname verification

When configured to use an SSL bundle, Spring Boot's RabbitMQ auto-configuration does not perform hostname verification when connecting to the RabbitMQ broker...

Cassandra SSL auto-configuration disables TLS hostname verification

Spring Boot's Cassandra auto-configuration does not perform hostname verification when establishing an SSL connection to Cassandra...

Improper Validation of Certificate with Host Mismatch

Overview Affected versions of this package are vulnerable to Improper Validation of Certificate with Host Mismatch due to establishing SSL connections to Cassandra without verifying that the hostname in the server's SSL certificate actually matched the hostname of the server being connected to...

Oracle Identity Manager (April 2026 CPU)

The 12.2.1.4.0 version of Identity Manager installed on the remote host are affected by multiple vulnerabilities as referenced in the April 2026 CPU advisory: - In Eclipse Jetty versions 9.4.0 to 9.4.56 a buffer can be incorrectly released when confronted with a gzip error when inflating a reques...

Security Bulletin: Multiple vulnerabilities in IBM Tivoli Network Configuration Manager IP Edition (ITNCM)

Summary Multiple vulnerabilities were addressed in ITNCM version 6.4.2 Fix Pack 24 6.4.2.24 Vulnerability Details CVEID:CVE-2025-68161 DESCRIPTION: The Socket Appender in Apache Log4j Core versions 2.0-beta9 through 2.25.2 does not perform TLS hostname verification of the peer certificate, even...

CLEANSTART-2026-CF62516 Hostname verification in Apache ZooKeeper ZKTrustManager falls back to reverse DNS (PTR) when IP SAN validation fails, allowing attackers who control or spoof PTR records to impersonate ZooKeeper s...

Multiple security vulnerabilities affect the kserve-modelmesh package. Hostname verification in Apache ZooKeeper ZKTrustManager falls back to reverse DNS PTR when IP SAN validation fails, allowing attackers who control or spoof PTR records to impersonate ZooKeeper servers or clients with a valid...

Security Bulletin: due to the use of Apache Log4j, IBM Transformation Extender Advanced is vulnerable to Host Mismatch

Summary Apache Log4j is used by IBM Transformation Extender Advanced also known as IBM Standards Processing Engine as part of common utility helpers. Apache Log4j has been updated to address CVE-2025-68161 which causes hostname mismatch. Vulnerability Details CVEID:CVE-2025-68161 DESCRIPTION: The...

Improper Certificate Validation

Apache Log4j Core is vulnerable to Improper Certificate Validation. The vulnerability is due to ignored hostname verification settings in TLS configuration, which allows an attacker to perform a man-in-the-middle attack by presenting a trusted certificate and intercepting secure communications...

CVE-2026-34477

A flaw was found in Apache Log4j Core. A network-based attacker can perform a man-in-the-middle MITM attack, allowing them to intercept encrypted communications. This occurs when an SMTP, Socket, or Syslog appender uses Transport Layer Security TLS with a nested element, and the attacker has a...

Improper Validation of Certificate with Host Mismatch

Overview org.apache.logging.log4j:log4j-core is a logging library for Java. Affected versions of this package are vulnerable to Improper Validation of Certificate with Host Mismatch due to the lack of TLS hostname verification in the SocketAppender component when configured through the...

CVE-2026-34477

The fix for CVE-2025-68161 https://logging.apache.org/security.htmlCVE-2025-68161 was incomplete: it addressed hostname verification only when enabled via the log4j2.sslVerifyHostName https://logging.apache.org/log4j/2.x/manual/systemproperties.htmllog4j2.sslVerifyHostName system property, but no...

UBUNTU-CVE-2026-34477

The fix for CVE-2025-68161 https://logging.apache.org/security.htmlCVE-2025-68161 was incomplete: it addressed hostname verification only when enabled via the log4j2.sslVerifyHostName https://logging.apache.org/log4j/2.x/manual/systemproperties.htmllog4j2.sslVerifyHostName system property, but no...

CVE-2026-34477

The fix for CVE-2025-68161 https://logging.apache.org/security.htmlCVE-2025-68161 was incomplete: it addressed hostname verification only when enabled via the log4j2.sslVerifyHostName https://logging.apache.org/log4j/2.x/manual/systemproperties.htmllog4j2.sslVerifyHostName system property, but no...

CVE-2026-34477 Apache Log4j Core: verifyHostName attribute silently ignored in TLS configuration, allowing hostname verification bypass

The fix for CVE-2025-68161 https://logging.apache.org/security.htmlCVE-2025-68161 was incomplete: it addressed hostname verification only when enabled via the log4j2.sslVerifyHostName https://logging.apache.org/log4j/2.x/manual/systemproperties.htmllog4j2.sslVerifyHostName system property, but no...

K000160700: Log4J vulnerability CVE-2025-68161

Security Advisory Description The Socket Appender in Apache Log4j Core versions 2.0-beta9 through 2.25.2 does not perform TLS hostname verification of the peer certificate, even when the verifyHostName https:// logging.apache . org/log4j/2.x/manual/appenders/network...

EUVD-2026-20517

A flaw was found in Red Hat Quay's Proxy Cache configuration feature. When an organization administrator configures an upstream registry for proxy caching, Quay makes a network connection to the specified registry hostname without verifying that it points to a legitimate external service. An...