Deserialization in Apache Karaf Decanter
CVE-2026-24656
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.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.007 (52.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.001
Affected products
- Apache Karaf Decanter
- Apache Software Foundation Karaf — versions 0, 2.12.0
Weakness classification (CWE)
References
- lists.apache.org/thread/dc5wmdn6hyc992olntkl75kk04ndzx34 (vendor-advisory, Mailing List)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2026-24656?
- CVE-2026-24656 is a low-severity vulnerability in Apache Karaf Decanter, classified under Deserialization of Untrusted Data. CVSS score: 3.7/10. Published 2026-01-26.
- How severe is CVE-2026-24656?
- Low severity. CVSS v3 base score is 3.7 out of 10.