CVE-2026-24656

low-risk

Published 2026-01-26

Deserialization of Untrusted Data vulnerability in Apache Karaf Decanter. The Decanter log socket collector exposes the port 4560, without authentication. If the collector exposes allowed classes property, this configuration can be bypassed. It means that 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 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.

Do I need to act?

0.03% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 3.7/10 Low

NETWORK / HIGH complexity

Affected Products (1)

Karaf Decanter

Affected Vendors

Apache

References (2)

Mailing List https://lists.apache.org/thread/dc5wmdn6hyc992olntkl75kk04ndzx34

Mailing List http://www.openwall.com/lists/oss-security/2026/01/24/1

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low-risk

Severity 13/34 · Low

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal