Ce mail provient de l'extérieur, restons vigilants ===================================================================== CERT-Renater Note d'Information No. 2026/VULN696 _____________________________________________________________________ DATE : 30/06/2026 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S): Systems running Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ versions prior to 6.2.7, 5.19.8. ===================================================================== https://lists.apache.org/thread/rs9dnr6fcpm6ns19jj5po4my8yrox41l https://lists.apache.org/thread/y2k2pm4mx2w7b2jmol2qtxspln820ddx https://lists.apache.org/thread/ksg2zlhpgz18os0wff18rg81y373dp0m https://lists.apache.org/thread/g5klj944m0krv08fp9xlrrmyv2znkox3 https://lists.apache.org/thread/y0o2cktxwpk8jmwgqwnmbt74j1tm7bm2 https://lists.apache.org/thread/16sb1zgwjz6zdk062bvs6gbhqjglbpsz https://lists.apache.org/thread/343od2osgvy7l1dkyxxtqhohoxl35xc6 https://lists.apache.org/thread/tj6z9phn7trkp6vcfp8q3gonlhg2n3jm https://lists.apache.org/thread/o2y6jw0b34o6b2qy9m8kxq03cct6cpqr _____________________________________________________________________ CVE-2026-54475: Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Temporary destination ownership takeover Severity: important Affected versions: - Apache ActiveMQ Broker (org.apache.activemq:activemq-broker) before 5.19.8 - Apache ActiveMQ Broker (org.apache.activemq:activemq-broker) 6.0.0 before 6.2.7 - Apache ActiveMQ All (org.apache.activemq:activemq-all) before 5.19.8 - Apache ActiveMQ All (org.apache.activemq:activemq-all) 6.0.0 before 6.2.7 - Apache ActiveMQ (org.apache.activemq:apache-activemq) before 5.19.8 - Apache ActiveMQ (org.apache.activemq:apache-activemq) 6.0.0 before 6.2.7 Description: Missing Authorization vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ. Apache ActiveMQ Classic temporary destinations are expected to be isolated to the connection that created them. The isolation can be broken as this is only checked in the client, allowing a different connection to consume from another connection's temporary destination. This issue affects Apache ActiveMQ Broker: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7. Users are recommended to upgrade to version 6.2.7, which fixes the issue. Credit: Leon Johnson (github: lokerxx) (finder) References: https://activemq.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-54475 _____________________________________________________________________ CVE-2026-53917: Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker: Unbounded memory allocation in OpenWire property unmarshalling Severity: important Affected versions: - Apache ActiveMQ (org.apache.activemq:apache-activemq) before 5.19.8 - Apache ActiveMQ (org.apache.activemq:apache-activemq) 6.0.0 before 6.2.7 - Apache ActiveMQ All (org.apache.activemq:activemq-all) before 5.19.8 - Apache ActiveMQ All (org.apache.activemq:activemq-all) 6.0.0 before 6.2.7 - Apache ActiveMQ Client (org.apache.activemq:activemq-client) before 5.19.8 - Apache ActiveMQ Client (org.apache.activemq:activemq-client) 6.0.0 before 6.2.7 - Apache ActiveMQ Broker (org.apache.activemq:activemq-broker) before 5.19.8 - Apache ActiveMQ Broker (org.apache.activemq:activemq-broker) 6.0.0 before 6.2.7 Description: Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker. An authenticated user can cause a broker DoS by sending a crafted OpenWire Message with a large encoded size value for the map. OpenWire message property maps are unmarshaled without size validation which can trigger OOM and crash the broker. This issue affects Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Client: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Broker: before 5.19.8, from 6.0.0 before 6.2.7. Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue. Credit: tonghuaroot (finder) References: https://activemq.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-53917 _____________________________________________________________________ CVE-2026-53916: Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: Unbounded header buffer in STOMP NIO codec Severity: important Affected versions: - Apache ActiveMQ (org.apache.activemq:apache-activemq) before 5.19.8 - Apache ActiveMQ (org.apache.activemq:apache-activemq) 6.0.0 before 6.2.7 - Apache ActiveMQ All (org.apache.activemq:activemq-all) before 5.19.8 - Apache ActiveMQ All (org.apache.activemq:activemq-all) 6.0.0 before 6.2.7 - Apache ActiveMQ Stomp (org.apache.activemq:activemq-stomp) before 5.19.8 - Apache ActiveMQ Stomp (org.apache.activemq:activemq-stomp) 6.0.0 before 6.2.7 Description: Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. An unauthenticated client that opens a STOMP NIO connection can send header bytes that never terminate which makes the broker buffer them without limit, exhausting the JVM heap. This issue affects Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Stomp: before 5.19.8, from 6.0.0 before 6.2.7. Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue. Credit: tonghuaroot (finder) References: https://activemq.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-53916 _____________________________________________________________________ CVE-2026-52760: Apache ActiveMQ, Apache ActiveMQ Web Console: Stored XSS via Unescaped values in ActiveMQ Web Console Severity: moderate Affected versions: - Apache ActiveMQ (org.apache.activemq:apache-activemq) before 5.19.8 - Apache ActiveMQ (org.apache.activemq:apache-activemq) 6.0.0 before 6.2.7 - Apache ActiveMQ Web Console (org.apache.activemq:apache-web-console) before 5.19.8 - Apache ActiveMQ Web Console (org.apache.activemq:apache-web-console) 6.0.0 before 6.2.7 Description: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Apache ActiveMQ, Apache ActiveMQ Web Console. The browse page in the web console renders a message Id directly without sanitization. This allows an authenticated producer to send a message with a JMS message ID that has been crafted to contain HTML/JavaScript such that when an administrator browses the queue in the Web Console, the payload executes in their browser. This issue affects Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Web Console: before 5.19.8, from 6.0.0 before 6.2.7. Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue. Credit: Biswajeet Ray (finder) References: https://activemq.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-52760 _____________________________________________________________________ CVE-2026-50750: Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All: Pre-authentication OpenWire DoS following fix for CVE-2026-49270 Severity: important Affected versions: - Apache ActiveMQ Broker (org.apache.activemq:activemq-broker) 5.19.7 before 5.19.8 - Apache ActiveMQ Broker (org.apache.activemq:activemq-broker) 6.2.6 before 6.2.7 - Apache ActiveMQ (org.apache.activemq:apache-activemq) 5.19.7 before 5.19.8 - Apache ActiveMQ (org.apache.activemq:apache-activemq) 6.2.6 before 6.2.7 - Apache ActiveMQ All (org.apache.activemq:activemq-all) 5.19.7 before 5.19.8 - Apache ActiveMQ All (org.apache.activemq:activemq-all) 6.2.6 before 6.2.7 Description: Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All. Following the fix for CVE-2026-49270 an unauthenticated attacker can now cause broker OOM by sending an repeated BrokerInfo commands without sending a ConnectionInfo, until the broker will crash with OOM. This issue affects Apache ActiveMQ Broker: from 5.19.7 before 5.19.8, from 6.2.6 before 6.2.7; Apache ActiveMQ: from 5.19.7 before 5.19.8, from 6.2.6 before 6.2.7; Apache ActiveMQ All: from 5.19.7 before 5.19.8, from 6.2.6 before 6.2.7. Users are recommended to upgrade to version 6.2.7, which fixes the issue. References: https://activemq.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-50750 _____________________________________________________________________ CVE-2026-50734: Apache ActiveMQ Client, Apache ActiveMQ, Apache ActiveMQ All: Pre-authentication OpenWire memory-allocation DoS during wire format negotiation Severity: important Affected versions: - Apache ActiveMQ Client (org.apache.activemq:activemq-client) before 5.19.8 - Apache ActiveMQ Client (org.apache.activemq:activemq-client) 6.0.0 before 6.2.7 - Apache ActiveMQ (org.apache.activemq:apache-activemq) before 5.19.8 - Apache ActiveMQ (org.apache.activemq:apache-activemq) 6.0.0 before 6.2.7 - Apache ActiveMQ All (org.apache.activemq:activemq-all) before 5.19.8 - Apache ActiveMQ All (org.apache.activemq:activemq-all) 6.0.0 before 6.2.7 Description: Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ Client, Apache ActiveMQ, Apache ActiveMQ All. An unauthenticated network attacker can cause a broker DoS by sending a crafted WireFormatInfo frame with a malicious large size value. The value is not validate and causes the broker to attempt allocation during pre-auth negotiation which can trigger OOM and crash the broker. This issue affects Apache ActiveMQ Client: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7. Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue. Credit: Andrej Tomci (finder) References: https://activemq.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-50734 _____________________________________________________________________ CVE-2026-49877: Apache ActiveMQ: Authenticated web users retain admin access by default in the Web Console Severity: important Affected versions: - Apache ActiveMQ (org.apache.activemq:apache-activemq) before 5.19.8 - Apache ActiveMQ (org.apache.activemq:apache-activemq) 6.0.0 before 6.2.7 Description: Improper Authorization vulnerability in Apache ActiveMQ. An authenticated low-privilege Web Console user by default can access /admin/* paths in the Web Console. The default Jetty settings incorrectly did not limit those paths to only admins. This issue affects Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7. Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue. Credit: Leon Johnson (github: lokerxx) (finder) References: https://activemq.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-49877 _____________________________________________________________________ CVE-2026-49432: Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: STOMP negative content-length enables denial of service Severity: important Affected versions: - Apache ActiveMQ (org.apache.activemq:apache-activemq) before 5.19.8 - Apache ActiveMQ (org.apache.activemq:apache-activemq) 6.0.0 before 6.2.7 - Apache ActiveMQ All (org.apache.activemq:activemq-all) before 5.19.8 - Apache ActiveMQ All (org.apache.activemq:activemq-all) 6.0.0 before 6.2.7 - Apache ActiveMQ Stomp (org.apache.activemq:activemq-stomp) before 5.19.8 - Apache ActiveMQ Stomp (org.apache.activemq:activemq-stomp) 6.0.0 before 6.2.7 Description: Improper Input Validation vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. A remote unauthenticated peer that can reach an exposed STOMP connector can trigger denial-of-service behavior by sending a negative content-length. For the NIO STOMP transport, an attacker can keep streaming body bytes and grow the per-connection command buffer beyond configured limits to cause OOM. For the blocking STOMP protocol, an error will instead force abnormal transport exception handling for the affected connection and closure. This issue affects Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Stomp: before 5.19.8, from 6.0.0 before 6.2.7. Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue. Credit: Youngjoon Kim (finder) References: https://activemq.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-49432 _____________________________________________________________________ CVE-2026-49434: Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All: LdapNetworkConnector instantiates denied transports and a remote-properties broker Severity: moderate Affected versions: - Apache ActiveMQ Broker (org.apache.activemq:activemq-broker) before 5.19.8 - Apache ActiveMQ Broker (org.apache.activemq:activemq-broker) 6.0.0 before 6.2.7 - Apache ActiveMQ (org.apache.activemq:apache-activemq) before 5.19.8 - Apache ActiveMQ (org.apache.activemq:apache-activemq) 6.0.0 before 6.2.7 - Apache ActiveMQ All (org.apache.activemq:activemq-all) before 5.19.8 - Apache ActiveMQ All (org.apache.activemq:activemq-all) 6.0.0 before 6.2.7 Description: Improper Input Validation vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All. An attacker that has access to publish or modify entries in LDAP that match the configured searchBase and searchFilter can instantiate denied transports inside the broker JVM. This can be used to fetch an attacker URL and spawn a second BrokerService inside the same JVM. This issue affects Apache ActiveMQ Broker: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7. Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue. Credit: @Add Content (finder) References: https://activemq.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-49434 ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 23/25 Rue Daviel | fax : 01-53-94-20-41 + + 75013 Paris | email:cert@support.renater.fr + =========================================================