CVE-2026-24656: Org.apache.karaf.decanter.collector.log.socket Apache Karaf Decanter Has Deserialization Vulnerability
LOWCVE-2026-24656 is a LOW (CVSS 3.7) apache karaf decanter has deserialization vulnerability (CWE-502: Deserialization of Untrusted Data) affecting Org.apache.karaf.decanter.collector.log.socket libraries in the Maven ecosystem. The issue involves apache karaf decanter has deserialization of untrusted data in its log socket collector. Remediation is available by upgrading affected packages to version 2.12.0.
CVE-2026-24656 at a Glance
Security Impact
CVSS: 3.7
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).
How to Fix CVE-2026-24656
To remediate this vulnerability, upgrade all affected Org.apache.karaf.decanter.collector.log.socket dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
<dependency>
<groupId>org.apache.karaf.decanter.collector</groupId>
<artifactId>org.apache.karaf.decanter.collector.log.socket</artifactId>
<version>2.12.0</version>
</dependency>Run the following command in your project directory to verify that all resolved dependencies use the patched release:
mvn dependency:tree -Dincludes=org.apache.karaf.decanter.collectorHow to Check if You Are Affected
To determine whether your Java application is affected by CVE-2026-24656, inspect your build dependencies using the Maven Dependency Plugin:
mvn dependency:tree -Dincludes=org.apache.karaf.decanter.collectorAnalyze the terminal output to locate any version of Org.apache.karaf.decanter.collector.log.socket in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.12.0), your application is affected.
Note: The mvn dependency:tree -Dincludes=org.apache.karaf.decanter.collector command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-502: Deserialization of Untrusted Data, where the product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. In Org.apache.karaf.decanter.collector.log.socket, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2026-24656 Affected Org.apache.karaf.decanter.collector.log.socket Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
org.apache.karaf.decanter.collector:org.apache.karaf.decanter.collector.log.socket
|
Maven |
< 2.12.0
|
2.12.0
|
References
Frequently Asked Questions
What is CVE-2026-24656?
Which Org.apache.karaf.decanter.collector.log.socket versions are affected?
What version fixes CVE-2026-24656?
Is org.apache.karaf.decanter.collector.log.socket affected?
What is the CVSS score of CVE-2026-24656?
What CWE is associated with CVE-2026-24656?
How can I check Maven dependencies for CVE-2026-24656?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-jmw5-58c7-587h",
"modified" : "2026-01-26T23:43:29Z",
"published" : "2026-01-26T12:30:29Z",
"aliases" : [ "CVE-2026-24656" ],
"summary" : "Apache Karaf Decanter has Deserialization of Untrusted Data in its Log Socket Collector",
"details" : "Deserialization of Untrusted Data vulnerability in Apache Karaf Decanter.\n\nThe Decanter Log Socket Collector exposes port 4560 without authentication. If the collector exposes allowed classes property, this configuration can be bypassed. The Log Socket Collector is vulnerable to deserialization of untrusted data, eventually causing DoS.\n\nNB: Decanter Log Socket Collector is not installed by default. Users who have not installed the Decanter Log Socket are not impacted by this issue.\n\nThis issue affects Apache Karaf Decanter before 2.12.0.\n\nUsers are recommended to upgrade to version 2.12.0, which fixes the issue.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Maven",
"name" : "org.apache.karaf.decanter.collector:org.apache.karaf.decanter.collector.log.socket"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "2.12.0"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-24656"
}, {
"type" : "WEB",
"url" : "https://github.com/apache/karaf-decanter/issues/555"
}, {
"type" : "WEB",
"url" : "https://github.com/apache/karaf-decanter/commit/9d7058d37160a16aaad34b488170adf277351e8b"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/apache/karaf-decanter"
}, {
"type" : "WEB",
"url" : "https://lists.apache.org/thread/dc5wmdn6hyc992olntkl75kk04ndzx34"
}, {
"type" : "WEB",
"url" : "http://www.openwall.com/lists/oss-security/2026/01/24/1"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-502" ],
"severity" : "LOW",
"github_reviewed" : true,
"github_reviewed_at" : "2026-01-26T23:43:29Z",
"nvd_published_at" : "2026-01-26T10:16:09Z"
}
}