CVE-2026-46495

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Source
https://cve.org/CVERecord?id=CVE-2026-46495
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46495.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-46495
Aliases
Published
2026-09-15T14:09:30Z
Modified
2026-09-17T08:08:34Z
Severity
  • 9.2 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
OpenDJ Pre-Auth RCE via Java Deserialization in JMX RMI
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-502"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46495.json"
}
References

Affected packages

Git / github.com/openidentityplatform/opendj

Affected ranges

Type
GIT
Repo
https://github.com/openidentityplatform/opendj
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
7e3a75903159153c877daeb2952a552701e38044
Fixed
d4a95c2e37c375756f9829c7ec43a4785b99e2e2
Fixed
eefd084c464aaa6492814a833d804a93e2001782
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "5.1.1"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

3.*
3.0.0-M4
3.0.0-M5
3.0.0-M6
3.0.0-M7
4.*
4.0.0-M1
4.0.1
4.0.2
4.0.3
4.1.10
4.1.6
4.1.9
4.10.0
4.10.1
4.10.2
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.4.1
4.4.10
4.4.11
4.4.12
4.4.13
4.4.14
4.4.15
4.4.2
4.4.3
4.4.4
4.4.5
4.4.6
4.4.7
4.4.8
4.4.9
4.5.0
4.5.1
4.5.3
4.5.4
4.5.5
4.5.6
4.5.9
4.6.1
4.6.2
4.6.3
4.6.4
4.6.5
4.7.0
4.8.0
4.8.1
4.8.2
4.9.0
4.9.1
4.9.2
4.9.3
4.9.4
5.*
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
Other
last-common-commit-with-opendj-sdk-repo

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46495.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "function_hash": "36407201546634784427645062051310184095",
            "length": 2069
        },
        "id": "CVE-2026-46495-289c22e5",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/openidentityplatform/opendj/commit/7e3a75903159153c877daeb2952a552701e38044",
        "target": {
            "file": "opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiConnector.java",
            "function": "startConnectorNoClientCertificate"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
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                "174805788874261827730489689761132290693"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-46495-b5501de5",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/openidentityplatform/opendj/commit/7e3a75903159153c877daeb2952a552701e38044",
        "target": {
            "file": "opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiAuthenticator.java"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "81301260170667640408244650093825832332",
                "275073423430940816573792100850871355509",
                "291870225912243916883157988993777072518",
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                "177322192247642510759811890504664848634",
                "186730558156324376204308530437733635844",
                "12075235626216775358342912458086137238",
                "184553741772770012557724427095331561978",
                "60595433410401980272310979351743253666"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-46495-bd18874a",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/openidentityplatform/opendj/commit/7e3a75903159153c877daeb2952a552701e38044",
        "target": {
            "file": "opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiConnector.java"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "113470039159357384789318273884520605464",
            "length": 1122
        },
        "id": "CVE-2026-46495-f230cf9b",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/openidentityplatform/opendj/commit/7e3a75903159153c877daeb2952a552701e38044",
        "target": {
            "file": "opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiAuthenticator.java",
            "function": "authenticate"
        }
    }
]
vanir_signatures_modified 
"2026-09-17T08:08:34Z"