Activemq

Authorization bypass in Apache ActiveMQ 5.x before 5.19.9 and 6.x before 6.2.8 allows authenticated low-privilege users to publish messages to any queue without proper write ACLs by abusing temporary composite destinations. This enables unauthorized message injection into restricted queues, potentially disrupting message integrity and business logic. No active exploitation or public exploit code has been identified.

Denial of service in Apache ActiveMQ's AMQP NIO connector allows remote unauthenticated attackers to exhaust the NIO thread pool by sending a crafted negative frame size value, causing legitimate connection disruption. Affects ActiveMQ versions before 5.19.9 and 6.x before 6.2.8. No known active exploitation, but rated moderate by the vendor due to network exposure.

Unauthorized message consumption in Apache ActiveMQ Classic lets a connected client read from temporary destinations belonging to a different connection, breaking the per-connection isolation that applications rely on. The root cause is that the isolation check is enforced only client-side, so a malicious or rogue client can subscribe to and drain another connection's temporary queue/topic. It affects ActiveMQ (Broker/All/Classic) before 5.19.8 and 6.0.0 before 6.2.7; there is no public exploit identified at time of analysis, and it is not in CISA KEV.

Denial of service in Apache ActiveMQ (versions before 5.19.8, and 6.0.0 before 6.2.7) lets an authenticated user crash the broker by sending a crafted OpenWire message whose property map declares an excessively large encoded size. Because the map is unmarshaled without validating the declared size against actual payload bounds, the broker pre-allocates massive memory and hits an OutOfMemory condition. No public exploit identified at time of analysis and the issue is not in CISA KEV, but the low attack complexity and availability of a vendor patch make it a practical operational concern for exposed brokers.

Unbounded heap consumption in Apache ActiveMQ's STOMP NIO codec allows an unauthenticated remote client to crash the broker by streaming non-terminating header bytes that the JVM buffers without limit until memory is exhausted. All three affected Maven artifacts (apache-activemq, activemq-all, activemq-stomp) are impacted in versions before 5.19.8 and in the 6.0.0-6.2.6 range. No public exploit code or active exploitation has been identified at time of analysis, but the unauthenticated, low-complexity network attack surface against a widely-deployed enterprise broker makes this a credible denial-of-service risk for any deployment with an exposed STOMP port.

Stored cross-site scripting in Apache ActiveMQ Web Console allows an authenticated message producer to inject malicious JavaScript via a crafted JMS message ID, which executes in the browser of any administrator who browses the affected queue. The browse page renders message IDs without HTML sanitization, enabling privilege escalation from producer to administrator via session hijacking or credential theft. No public exploit identified at time of analysis and not listed in CISA KEV; rated moderate severity by Apache, consistent with the authentication prerequisite and required user interaction.

Unauthenticated information disclosure in Apache ActiveMQ Broker allows remote attackers to enumerate all durable topic subscriptions - including client identifiers, subscription names, topic destinations, and JMS selector expressions - by sending a BrokerInfo command to a broker with syncDurableSubs enabled on a network connector. The broker incorrectly skips authentication before servicing the BrokerInfo request, exposing sensitive messaging infrastructure metadata. No public exploit identified at time of analysis, and EPSS stands at 0.02% (6th percentile), indicating very low current exploitation probability despite network-reachable attack vector.

Privilege escalation in Apache ActiveMQ versions before 5.19.7 and 6.0.0 through 6.2.5 allows authenticated low-privilege web-login users to invoke administrative Jolokia operations such as addQueue and removeQueue due to overly permissive default authorization settings. The CVSS 8.8 score reflects high impact on confidentiality, integrity, and availability, though EPSS exploitation probability sits at just 0.01% and no public exploit identified at time of analysis. The flaw effectively collapses the broker's privilege boundary between normal web users and administrators.

Incomplete authorization in Apache ActiveMQ Broker allows authenticated low-privilege users to remove messaging destinations (queues and topics) beyond their granted permissions, causing targeted availability disruption to broker-connected producers and consumers. Affected versions span the 5.x line before 5.19.7 and the 6.x line from 6.0.0 before 6.2.6, covering ActiveMQ Broker and ActiveMQ All distributions. With an EPSS of 0.01% (3rd percentile), no CISA KEV listing, and no public exploit code identified, this is a low-urgency but genuine authorization control gap that is most relevant to environments with multiple untrusted authenticated broker accounts.

Remote code execution in Apache ActiveMQ Broker, ActiveMQ All, and ActiveMQ (versions before 5.19.7 and 6.0.0 before 6.2.6) allows authenticated attackers to bypass the CVE-2026-34197 fix using non-parenthesized discovery wrappers such as `masterslave:vm://...` and `static:vm://...`, which incorrectly pass validation and trigger the VM transport's brokerConfig parameter to load a remote Spring XML application context. The flaw abuses the Jolokia JMX-HTTP bridge at /api/jolokia/ to invoke BrokerService.addNetworkConnector/addConnector MBean operations, resulting in arbitrary code execution on the broker JVM. EPSS is low at 0.06% (19th percentile) and no public exploit identified at time of analysis, but the patch bypass nature and prior in-the-wild interest in ActiveMQ RCE chains warrant urgent patching.

Authenticated remote code execution in Apache ActiveMQ Classic (versions before 5.19.7 and 6.0.0 through 6.2.5) is achievable via the Jolokia JMX-HTTP bridge exposed at /api/jolokia/ on the web console. An authenticated attacker can invoke BrokerService.addNetworkConnector with a crafted masterslave:// discovery URI that loads a Spring XML application context, instantiating attacker-controlled singleton beans (e.g., Runtime.exec()) on the broker JVM. No public exploit identified at time of analysis and EPSS is low (0.06%), but the vendor-released patches and CVSS 8.1 score reflect a significant risk to message brokers exposing the web console.

HTTP response header injection in Apache ActiveMQ's web console MessageServlet exposes users to security header override and cross-site scripting attacks. The servlet copies every JMS message property directly into HTTP response headers without sanitization, meaning an attacker who can publish crafted JMS messages to a broker queue can override headers such as Content-Security-Policy or X-Frame-Options when a web console user views those messages. No public exploit has been identified at time of analysis, and EPSS of 0.03% (9th percentile) reflects low observed exploitation probability, though the no-privilege-required CVSS vector and Scope:Changed score signal meaningful impact on browser security posture if exploited.

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ. Rated medium severity (CVSS 6.9), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

In Apache ActiveMQ 6.x, the default configuration doesn't secure the API web context (where the Jolokia JMX REST API and the Message REST API are located). Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

The Java OpenWire protocol marshaller is vulnerable to Remote Code Execution. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

XStream is a Java library to serialize objects to XML and back again. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

XStream is a Java library to serialize objects to XML and back again. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

XStream is a Java library to serialize objects to XML and back again. Rated high severity (CVSS 8.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

XStream is a Java library to serialize objects to XML and back again. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Uncontrolled Resource Consumption vulnerability could allow attackers to cause denial of service by exhausting system resources.

XStream is a Java library to serialize objects to XML and back again. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

XStream is a Java library to serialize objects to XML and back again. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

XStream is a Java library to serialize objects to XML and back again. Rated critical severity (CVSS 9.9), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

XStream is a Java library to serialize objects to XML and back again. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

XStream is a Java library to serialize objects to XML and back again. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

XStream is a Java library to serialize objects to XML and back again. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

XStream is a Java library to serialize objects to XML and back again. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

The optional ActiveMQ LDAP login module can be configured to use anonymous access to the LDAP server. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Improper Authentication vulnerability could allow attackers to bypass authentication mechanisms to gain unauthorized access.

XStream before version 1.4.14 is vulnerable to Remote Code Execution.The vulnerability may allow a remote attacker to run arbitrary shell commands only by manipulating the processed input stream. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

Apache ActiveMQ uses LocateRegistry.createRegistry() to create the JMX RMI registry and binds the server to the "jmxrmi" entry. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

A regression has been introduced in the commit preventing JMX re-bind. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

In Apache ActiveMQ 5.0.0 to 5.15.11, the webconsole admin GUI is open to XSS, in the view that lists the contents of a queue. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

An issue is present in Apache ZooKeeper 1.0.0 to 3.4.13 and 3.5.0-alpha to 3.5.4-beta. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. This Missing Authorization vulnerability could allow attackers to access resources or perform actions without proper authorization checks.

In Eclipse Jetty version 9.2.26 and older, 9.3.25 and older, and 9.4.15 and older, the server is vulnerable to XSS conditions if a remote client USES a specially formatted URL against the. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.

In Apache ActiveMQ 5.0.0 - 5.15.8, unmarshalling corrupt MQTT frame can lead to broker Out of Memory exception making it unresponsive. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

An instance of a cross-site scripting vulnerability was identified to be present in the web based administration console on the queue.jsp page of Apache ActiveMQ versions 5.0.0 to 5.15.5. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

TLS hostname verification when using the Apache ActiveMQ Client before 5.15.6 was missing which could make the client vulnerable to a MITM attack between a Java application using the ActiveMQ client. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, no authentication required.

XML external entity (XXE) vulnerability in Apache ActiveMQ 5.x before 5.10.1 allows remote consumers to have unspecified impact via vectors involving an XPath based selector when dequeuing XML. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

The administration web console in Apache ActiveMQ 5.x before 5.11.4, 5.12.x before 5.12.3, and 5.13.x before 5.13.2 allows remote authenticated users to conduct cross-site scripting (XSS) attacks and. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity.

The web-based administration console in Apache ActiveMQ 5.x before 5.13.2 does not send an X-Frame-Options HTTP header, which makes it easier for remote attackers to conduct clickjacking attacks via. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Apache ActiveMQ 5.x before 5.13.0 does not restrict the classes that can be serialized in the broker, which allows remote attackers to execute arbitrary code via a crafted serialized Java Message. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Epss exploitation probability 80.4%.

The LDAPLoginModule implementation in the Java Authentication and Authorization Service (JAAS) in Apache ActiveMQ 5.x before 5.10.1 allows wildcard operators in usernames, which allows remote. Rated medium severity (CVSS 5.0), this vulnerability is remotely exploitable, low attack complexity.

The LDAPLoginModule implementation in the Java Authentication and Authorization Service (JAAS) in Apache ActiveMQ 5.x before 5.10.1 allows remote attackers to bypass authentication by logging in with. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. This Improper Authentication vulnerability could allow attackers to bypass authentication mechanisms to gain unauthorized access.

Directory traversal vulnerability in the fileserver upload/download functionality for blob messages in Apache ActiveMQ 5.x before 5.11.2 for Windows allows remote attackers to create JSP files in. Rated medium severity (CVSS 5.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 86.0%.

The processControlCommand function in broker/TransportConnection.java in Apache ActiveMQ before 5.11.0 allows remote attackers to cause a denial of service (shutdown) via a shutdown command. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Epss exploitation probability 40.7%.

Multiple cross-site scripting (XSS) vulnerabilities in the web based administration console in Apache ActiveMQ 5.x before 5.10.1 allow remote attackers to inject arbitrary web script or HTML via. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable.

Cross-site scripting (XSS) vulnerability in the Portfolio publisher servlet in the demo web application in Apache ActiveMQ before 5.9.0 allows remote attackers to inject arbitrary web script or HTML. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. Public exploit code available.

Cross-site scripting (XSS) vulnerability in scheduled.jsp in Apache ActiveMQ 5.8.0 and earlier allows remote attackers to inject arbitrary web script or HTML via vectors involving the "cron of a. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable.

The web console in Apache ActiveMQ before 5.8.0 does not require authentication, which allows remote attackers to obtain sensitive information or cause a denial of service via HTTP requests. Rated medium severity (CVSS 6.4), this vulnerability is remotely exploitable, low attack complexity. This Improper Authentication vulnerability could allow attackers to bypass authentication mechanisms to gain unauthorized access.

The default configuration of Apache ActiveMQ before 5.8.0 enables a sample web application, which allows remote attackers to cause a denial of service (broker resource consumption) via HTTP requests. Rated medium severity (CVSS 5.0), this vulnerability is remotely exploitable, low attack complexity.

Multiple cross-site scripting (XSS) vulnerabilities in the web demos in Apache ActiveMQ before 5.8.0 allow remote attackers to inject arbitrary web script or HTML via (1) the refresh parameter to. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable.

Apache Axis 1.4 and earlier, as used in PayPal Payments Pro, PayPal Mass Pay, PayPal Transactional Information SOAP, the Java Message Service implementation in Apache ActiveMQ, and other products,. Rated medium severity (CVSS 5.8), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.