CVE-2026-92230 — Apache Karaf: Improper release of ClassLoader references via static ThreadLocal caching
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 bundl…
Published: 2026-09-17 · CVSS: 7.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7