---
title: "CVE-2026-92230: Apache Karaf - Denial of Service"
description: "Apache Karaf contains a denial of service caused by caching XML parser/transformer factories in static ThreadLocal fields, leading to unbounded Metaspace growth when bundles are repeatedly installed or refreshed, letting attackers cause service disruption, exploit requires repeated bundle or feature operations."
url: https://panop.io/threat-heartbeat/CVE-2026-92230/
---

# CVE-2026-92230 Apache Karaf - Denial of Service

Apache Karaf contains a denial of service caused by caching XML parser/transformer factories in static ThreadLocal fields, leading to unbounded Metaspace growth when bundles are repeatedly installed or refreshed, letting attackers cause service disruption, exploit requires repeated bundle or feature operations.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

EPSS

0.49% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-92230)

## Details

Type

Denial of Service

Impact

Denial Of Service

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Published

17 September 2026

Updated

15 October 2026

Weakness

[CWE-401](https://cwe.mitre.org/data/definitions/401.html)

## Vendor fix

Update to the latest version with the fix for ThreadLocal caching issue.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-92230](https://nvd.nist.gov/vuln/detail/CVE-2026-92230)
- [https://lists.apache.org/thread/pxgqjvsmzgpvgly1qf1w300qxsp8bxdj](https://lists.apache.org/thread/pxgqjvsmzgpvgly1qf1w300qxsp8bxdj)
- [http://www.openwall.com/lists/oss-security/2026/09/17/3](http://www.openwall.com/lists/oss-security/2026/09/17/3)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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