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Apache Karaf Decanter has Deserialization of Untrusted Data in its Log Socket Collector

Low severity GitHub Reviewed Published Jan 26, 2026 to the GitHub Advisory Database • Updated Jan 26, 2026

Package

maven org.apache.karaf.decanter.collector:org.apache.karaf.decanter.collector.log.socket (Maven)

Affected versions

< 2.12.0

Patched versions

2.12.0

Description

Deserialization of Untrusted Data vulnerability in Apache Karaf Decanter.

The 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.

NB: Decanter Log Socket Collector is not installed by default. Users who have not installed the Decanter Log Socket are not impacted by this issue.

This issue affects Apache Karaf Decanter before 2.12.0.

Users are recommended to upgrade to version 2.12.0, which fixes the issue.

References

Published by the National Vulnerability Database Jan 26, 2026
Published to the GitHub Advisory Database Jan 26, 2026
Reviewed Jan 26, 2026
Last updated Jan 26, 2026

Severity

Low

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(10th percentile)

Weaknesses

Deserialization of Untrusted Data

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. Learn more on MITRE.

CVE ID

CVE-2026-24656

GHSA ID

GHSA-jmw5-58c7-587h

Source code

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