CVE-2026-92230Apache Karaf: Improper release of ClassLoader references via static ThreadLocal caching
Updated under an hour ago ()
Does this affect you?
It affects Apache Software Foundation Apache Karaf. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Apache Karaf's XmlUtils cached XML parser/transformer factories in static ThreadLocal fields on long-lived container threads. Because a ThreadLocal value outlives the OSGi bundle that created it, repeated bundle or feature install, update, or refresh operations can leave successive bundle ClassLoader's pinned in memory and unreachable for garbage collection, leading to unbounded Metaspace growth and eventual denial of service of the Karaf instance.
- CVSS
- 7.5 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-401, CWE-772
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- apache
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 18, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Apache Software Foundation Apache Karaf apache_software_foundation:apache_karaf (from the name) | before 4.4.11 | CNA record |
References
- https://lists.apache.org/thread/pxgqjvsmzgpvgly1qf1w300qxsp8bxdjvendor-advisory
- http://www.openwall.com/lists/oss-security/2026/09/17/3
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.