OpenDJ is an LDAPv3 compliant directory service. Prior to 5.1.1, the JMX RMI connector in opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiConnector.java processes attacker-controlled credential objects before authentication without a restrictive jmx.remote.rmi.server.credentials.filter.pattern, and RmiAuthenticator.authenticate in opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiAuthenticator.java accepts an unconstrained Object array rather than a two-element String[]. When the JMX Connection Handler is enabled and its TCP listener is reachable, an unauthenticated remote attacker can submit a crafted serialized Java object and achieve code execution in the OpenDJ server process. The handler is disabled by default, and successful exploitation depends on the runtime classpath and Java version; remote code execution was demonstrated against OpenDJ 4.4.15 on JDK 11 with Jackson 2.12.6.1. This issue is fixed in 5.1.1.
Metrics
Affected Vendors & Products
References
History
Thu, 17 Sep 2026 20:30:00 +0000
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Openidentityplatform
Openidentityplatform opendj |
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| Vendors & Products |
Openidentityplatform
Openidentityplatform opendj |
Tue, 15 Sep 2026 15:30:00 +0000
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ssvc
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Tue, 15 Sep 2026 14:30:00 +0000
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| Description | OpenDJ is an LDAPv3 compliant directory service. Prior to 5.1.1, the JMX RMI connector in opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiConnector.java processes attacker-controlled credential objects before authentication without a restrictive jmx.remote.rmi.server.credentials.filter.pattern, and RmiAuthenticator.authenticate in opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiAuthenticator.java accepts an unconstrained Object array rather than a two-element String[]. When the JMX Connection Handler is enabled and its TCP listener is reachable, an unauthenticated remote attacker can submit a crafted serialized Java object and achieve code execution in the OpenDJ server process. The handler is disabled by default, and successful exploitation depends on the runtime classpath and Java version; remote code execution was demonstrated against OpenDJ 4.4.15 on JDK 11 with Jackson 2.12.6.1. This issue is fixed in 5.1.1. | |
| Title | OpenDJ Pre-Auth RCE via Java Deserialization in JMX RMI | |
| Weaknesses | CWE-502 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-09-15T14:09:30.669Z
Updated: 2026-09-15T14:48:13.800Z
Reserved: 2026-05-14T18:06:06.811Z
Link: CVE-2026-46495
Updated: 2026-09-15T14:48:08.596Z
Status : Awaiting Analysis
Published: 2026-09-15T15:17:15.493
Modified: 2026-09-25T14:23:59.847
Link: CVE-2026-46495
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