---
id: CVE-2026-92230
title: >-
  Apache Karaf's XmlUtils cached XML parser/transformer factories in static
  ThreadLocal fields on long-lived container threads
summary: >-
  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, updat…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-401
  - CWE-772
vendor: Apache Software Foundation
product: Apache Karaf
affected:
  - apache_karaf < 4.4.11
published: '2026-09-17'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T17:48:19.003'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92230'
references:
  - url: 'https://lists.apache.org/thread/pxgqjvsmzgpvgly1qf1w300qxsp8bxdj'
    label: security@apache.org
  - url: 'http://www.openwall.com/lists/oss-security/2026/09/17/3'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
  - cve.org
epss: 0.00488
epssPercentile: 0.39418
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-18T13:32:59.478507Z'
ingestedAt: '2026-09-17T19:26:25.319Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.