PT-2026-107235

Name of the Vulnerable Software and Affected Versions Apache log4net versions 1.2.9 through 3.4.x Description Insufficient logging occurs in the EventLogAppender on Windows. Long messages are truncated to a fixed size that, when combined with log and source names, exceeds the Windows Event Log...

PT-2026-107179

Name of the Vulnerable Software and Affected Versions Apache log4net versions 1.2.9 through 3.4.x Description Improper neutralization of null bytes or NUL characters in the EventLogAppender allows a NUL character in logged content to truncate the Windows Event Log record. This results in all...

CVE-2026-105243: Insufficient Logging

Insufficient Logging vulnerability in the EventLogAppender of Apache log4net. Long messages were truncated to a fixed size that exceeds what the Windows Event Log accepts once the log and source names are counted, and the event log then stored nothing and reported nothing. A party whose data...

Apache Curator 5.9.0 Java Deserialization

Apache Curator version 5.9.0 contains an unsafe Jackson deserialization issue in its service-discovery component that can instantiate an attacker-controlled payload class. !/usr/bin/env python Apache Curator 5.9.0 Java Deserialization Vendor: The Apache Software Foundation Product web page:...

Apache Curator 5.9.0 Java Deserialization

Summary Apache Curator is a Java/JVM client library for Apache ZooKeeper, a distributed coordination service. It includes a high level API framework and utilities to make using Apache ZooKeeper much easier and more reliable. It also includes recipes for common use cases and extensions such as...

PT-2026-107232

Name of the Vulnerable Software and Affected Versions Apache log4net versions 1.2.9 through 3.4.x Description Improper neutralization of null bytes or NUL characters in the OutputDebugStringAppender allows logged content to be truncated. When a NUL character is present, the debug output record en...

CVE-2026-105239: Improper Neutralization of Null Byte or NUL Character

Improper Neutralization of Null Byte or NUL Character vulnerability in the EventLogAppender of Apache log4net. A NUL character in logged content ended the Windows Event Log record at that point, so everything the layout rendered after it, including exception text and trailing fields, was silently...

CVE-2026-94114: Symbolic Name not Mapping to Correct Object

Symbolic name not mapping to correct class. BCEL caches attacker-controlled classes under their self-declared names without validating the requested name, allowing subsequent lookups and name-keyed verification results to refer to a different class. This issue affects Apache Commons BCEL: before...

PT-2026-107219

Name of the Vulnerable Software and Affected Versions Apache Commons BCEL versions prior to 6.13.0 Description BCEL caches attacker-controlled classes under their self-declared names without validating the requested name. This allows subsequent lookups and name-keyed verification results to refer...

PT-2026-107178

Name of the Vulnerable Software and Affected Versions Apache Commons BCEL versions prior to 6.13.0 Description Improper neutralization of input during web page generation leads to cross-site scripting XSS, a condition where malicious scripts are injected into trusted websites. This occurs when...

Apache Commons JCS 3.2.1 Unauthenticated Java Deserialization

Summary JCS is a distributed caching system written in Java. It is intended to speed up applications by providing a means to manage cached data of various dynamic natures. Like any caching system, JCS is most useful for high read, low put applications. Latency times drop sharply and bottlenecks...

Linux Distros Unpatched Vulnerability : CVE-2026-104711

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Improper neutralization of special elements used in an expression language statement 'Expression Language Injection' vulnerability in Apache Struts. If the...

Apache Commons JCS 3.2.1 Unauthenticated Deserialization

Apache Commons JCS version 3.2.1 contains an unauthenticated Java deserialization vulnerability in its TCP Lateral Cache listener that could allow remote code execution when the lateral cache is enabled. / Apache Commons JCS 3.2.1 Unauthenticated Java Deserialization Vendor: The Apache Software...

CVE-2026-105111: Improper Neutralization of Input During Web Page Generation

Improper neutralization of input during web page generation 'cross-site scripting' vulnerability in Apache Commons BCEL. This only happens when you're using Class2HTML to generate webpages for possibly-attacker-controlled class files, where Class2HTML emitters write attacker class-file strings in...

PT-2026-107236

Name of the Vulnerable Software and Affected Versions Apache log4net versions 1.2.12 through 3.4.x Description Improper encoding or escaping of output occurs in the RemoteSyslogAppender. Characters outside visible ASCII and space are removed from the record instead of being escaped, causing...

PT-2026-107234

Name of the Vulnerable Software and Affected Versions Apache log4net versions 1.2.11 through 3.4.x Description Improper handling of exceptional conditions in the aspnet-request pattern converter allows a sender to suppress the log record of their own request. When reading request parameters,...

PT-2026-107233

Name of the Vulnerable Software and Affected Versions Apache log4net versions 1.2.9 through 3.4.x Description Improper handling of Unicode encoding in the SmtpPickupDirAppender occurs when the mail file writer encounters content it cannot encode, such as an unpaired UTF-16 surrogate. This causes...

CVE-2026-105244: Improper Encoding or Escaping of Output

Improper Encoding or Escaping of Output vulnerability in the RemoteSyslogAppender of Apache log4net. Every character outside visible ASCII and space was removed from the record instead of being escaped, so non-ASCII text and control characters such as tabs disappeared without notice. A party whos...

CVE-2026-105241: Improper Handling of Unicode Encoding

Improper Handling of Unicode Encoding vulnerability in the SmtpPickupDirAppender of Apache log4net. Content that the mail file writer cannot encode, such as an unpaired UTF-16 surrogate, made the write throw. Every buffered event in the batch was discarded, not only the one carrying the content,...

CVE-2026-105242: Improper Handling of Exceptional Conditions

Improper Handling of Exceptional Conditions vulnerability in the aspnet-request pattern converter of Apache log4net. Reading request parameters triggers ASP.NET request validation, so a request carrying content such as markup made the layout throw and the appender discarded the whole event. A...