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VulnerabilityPublished

CVE-2026-92230: Apache Karaf · Memory Leak

Affects Apache KarafSource CVE Database V5

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Not known to be exploited · CVSS 7.5 High : upgrade to 4.4.11 soon.

Data as of 1 Nov 2026, 11:03 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 42% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.4.11
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 1 Nov 2026.

What to do

Upgrade Apache Karaf and org.apache.karaf/apache-karaf to 4.4.11.

Affected software

ProductAffectedFixed in
Apache Software FoundationApache KarafAffected
  • <4.4.11
Fixed in
  • 4.4.11
Mavenorg.apache.karaf/apache-karafpkg:maven/org.apache.karaf/apache-karafOther threatsAffected
  • <4.4.11
Fixed in
  • 4.4.11

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

If you cannot patch yet, consider minimizing bundle lifecycle operations or restarting the Karaf instance periodically to mitigate memory growth.

Description

CVE-2026-92230 is a high-severity vulnerability in Apache Karaf where static ThreadLocal fields cache XML parser/transformer factories on long-lived container threads. This causes memory from successive bundle ClassLoaders to be retained and unreachable for garbage collection after bundle lifecycle operations, leading to unbounded Metaspace growth and potential denial of service.

References

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