Apache
Vulnerabilities in Apache Software Foundation projects — most notably Log4j, the ubiquitous Java logging library whose Log4Shell flaw became one of the most widely exploited vulnerabilities in internet history.
Apache Tomcat Missing Encryption of Sensitive Data Vulnerability
Apache Tomcat contains a missing encryption of sensitive data vulnerability that allows the bypass of the EncryptInterceptor.
Apache ActiveMQ Improper Input Validation Vulnerability
Apache ActiveMQ contains an improper input validation vulnerability that allows for code injection.
Apache HTTP Server Improper Escaping of Output Vulnerability
Apache HTTP Server contains an improper escaping of output vulnerability in mod_rewrite that allows an attacker to map URLs to filesystem locations that are permitted to be served by the server but are not intentionally/directly reachable by any URL, resulting in code execution or source code disclosure.
Apache Tomcat Path Equivalence Vulnerability
Apache Tomcat contains a path equivalence vulnerability that allows a remote attacker to execute code, disclose information, or inject malicious content via a partial PUT request.
Apache OFBiz Forced Browsing Vulnerability
Apache OFBiz contains a forced browsing vulnerability that allows a remote attacker to obtain unauthorized access.
Apache HugeGraph-Server Improper Access Control Vulnerability
Apache HugeGraph-Server contains an improper access control vulnerability that could allow a remote attacker to execute arbitrary code.
Apache OFBiz Incorrect Authorization Vulnerability
Apache OFBiz contains an incorrect authorization vulnerability that could allow remote code execution via a Groovy payload in the context of the OFBiz user process by an unauthenticated attacker.
Apache OFBiz Path Traversal Vulnerability
Apache OFBiz contains a path traversal vulnerability that could allow for remote code execution.
Apache Flink Improper Access Control Vulnerability
Apache Flink contains an improper access control vulnerability that allows an attacker to read any file on the local filesystem of the JobManager through its REST interface.
Apache Superset Insecure Default Initialization of Resource Vulnerability
Apache Superset contains an insecure default initialization of a resource vulnerability that allows an attacker to authenticate and access unauthorized resources on installations that have not altered the default configured SECRET_KEY according to installation instructions.
Apache ActiveMQ Deserialization of Untrusted Data Vulnerability
Apache ActiveMQ contains a deserialization of untrusted data vulnerability that may allow a remote attacker with network access to a broker to run shell commands by manipulating serialized class types in the OpenWire protocol to cause the broker to instantiate any class on the classpath.
Apache RocketMQ Command Execution Vulnerability
Several components of Apache RocketMQ, including NameServer, Broker, and Controller, are exposed to the extranet and lack permission verification. An attacker can exploit this vulnerability by using the update configuration function to execute commands as the system users that RocketMQ is running as or achieve the same effect by forging the RocketMQ protocol content.
Apache Tomcat Remote Code Execution Vulnerability
Apache Tomcat contains an unspecified vulnerability that allows for remote code execution if JmxRemoteLifecycleListener is used and an attacker can reach Java Management Extension (JMX) ports. This CVE exists because this listener wasn't updated for consistency with the Oracle patched issues for CVE-2016-3427 which affected credential types.
Apache Log4j2 Deserialization of Untrusted Data Vulnerability
Apache Log4j2 contains a deserialization of untrusted data vulnerability due to the incomplete fix of CVE-2021-44228, where the Thread Context Lookup Pattern is vulnerable to remote code execution in certain non-default configurations.
Apache Spark Command Injection Vulnerability
Apache Spark contains a command injection vulnerability via Spark User Interface (UI) when Access Control Lists (ACLs) are enabled.
Apache APISIX Authentication Bypass Vulnerability
Apache APISIX contains an authentication bypass vulnerability that allows for remote code execution.
Apache CouchDB Insecure Default Initialization of Resource Vulnerability
Apache CouchDB contains an insecure default initialization of resource vulnerability which can allow an attacker to escalate to administrative privileges.
Apache Struts Improper Input Validation Vulnerability
Apache Struts allows remote attackers to execute arbitrary Object-Graph Navigation Language (OGNL) expressions.
Apache Tomcat on Windows Remote Code Execution Vulnerability
When running Apache Tomcat on Windows with HTTP PUTs enabled, it is possible to upload a JSP file to the server via a specially crafted request. This JSP could then be requested and any code it contained would be executed by the server.
Apache Tomcat Remote Code Execution Vulnerability
When running Apache Tomcat, it is possible to upload a JSP file to the server via a specially crafted request. This JSP could then be requested and any code it contained would be executed by the server.
Apache Kylin OS Command Injection Vulnerability
Apache Kylin contains an OS command injection vulnerability which could permit an attacker to perform remote code execution.
Apache Tomcat Improper Privilege Management Vulnerability
Apache Tomcat treats Apache JServ Protocol (AJP) connections as having higher trust than, for example, a similar HTTP connection. If such connections are available to an attacker, they can be exploited.
Apache ActiveMQ Improper Input Validation Vulnerability
The Fileserver web application in Apache ActiveMQ allows remote attackers to upload and execute arbitrary files via an HTTP PUT followed by an HTTP MOVE request
Apache Struts 1 Improper Input Validation Vulnerability
The Struts 1 plugin in Apache Struts might allow remote code execution via a malicious field value passed in a raw message to the ActionMessage.
Apache Struts 1 ActionForm Denial-of-Service Vulnerability
ActionForm in Apache Struts versions before 1.2.9 with BeanUtils 1.7 contains a vulnerability that allows for denial-of-service (DoS).
Apache Struts 2 Improper Input Validation Vulnerability
The ExceptionDelegator component in Apache Struts 2 before 2.2.3.1 contains an improper input validation vulnerability that allows for remote code execution.
Apache Airflow Command Injection
A remote code/command injection vulnerability was discovered in one of the example DAGs shipped with Airflow.
Apache Airflow's Experimental API Authentication Bypass
The previous default setting for Airflow's Experimental API was to allow all API requests without authentication.
Apache Solr DataImportHandler Code Injection Vulnerability
The optional Apache Solr module DataImportHandler contains a code injection vulnerability.
Log4Shell — Apache Log4j2 Remote Code Execution
A critical remote-code-execution vulnerability in Apache Log4j2, the ubiquitous Java logging library, allows an unauthenticated attacker to execute arbitrary code simply by getting a string they control logged — via JNDI lookup injection. One of the most widely exploited vulnerabilities in internet history due to Log4j's near-universal presence in Java applications.
Apache HTTP Server-Side Request Forgery (SSRF)
A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.
Apache Shiro Code Execution Vulnerability
Apache Shiro contains a vulnerability which may allow remote attackers to execute code or bypass intended access restrictions via an unspecified request parameter when a cipher key has not been configured for the "remember me" feature.
Apache Struts Remote Code Execution Vulnerability
Apache Struts Jakarta Multipart parser allows for malicious file upload using the Content-Type value, leading to remote code execution.
Apache Struts Deserialization of Untrusted Data Vulnerability
Apache Struts REST Plugin uses an XStreamHandler with an instance of XStream for deserialization without any type filtering, which can lead to remote code execution when deserializing XML payloads.
Apache Struts Remote Code Execution Vulnerability
Apache Struts contains a vulnerability that allows for remote code execution under two circumstances. One, where the alwaysSelectFullNamespace option is true and the value isn't set for a result defined in underlying configurations and in same time, its upper package configuration have no or wildcard namespace. Or, using URL tag which doesn't have value and action set and in same time, its upper package configuration have no or wildcard namespace.
Apache HTTP Server Privilege Escalation Vulnerability
Apache HTTP Server, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute code with the privileges of the parent process (usually root) by manipulating the scoreboard.
Apache Solr VelocityResponseWriter Plug-In Remote Code Execution Vulnerability
The Apache Solr VelocityResponseWriter plug-in contains an unspecified vulnerability which can allow for remote code execution.
Apache Struts Remote Code Execution Vulnerability
Forced Object-Graph Navigation Language (OGNL) evaluation in Apache Struts, when evaluated on raw user input in tag attributes, can lead to remote code execution.
Apache HTTP Server Path Traversal Vulnerability
Apache HTTP Server contains a path traversal vulnerability that allows an attacker to perform remote code execution if files outside directories configured by Alias-like directives are not under default �require all denied� or if CGI scripts are enabled. The original patch issued under this CVE ID is insufficient, please review remediation information under CVE-2021-42013.
Apache HTTP Server Path Traversal Vulnerability
Apache HTTP Server contains a path traversal vulnerability that allows an attacker to perform remote code execution if files outside directories configured by Alias-like directives are not under default require all denied or if CGI scripts are enabled. This CVE ID resolves an incomplete patch for CVE-2021-41773.
Apache Tomcat EncryptInterceptor Bypass Added to KEV — Patch by Aug 7
CVE-2026-34486 lets attackers bypass Tomcat's EncryptInterceptor, exposing clustered node traffic. CISA added it to KEV on Aug 4 after active exploitation. Fixed builds are out.
Log4Shell, Explained: The Internet's Worst Week
CVE-2021-44228 turned a single misused feature in Apache Log4j2 — a Java logging library embedded almost everywhere — into one of the most widely exploited vulnerabilities ever recorded.