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VulnerabilityPublished Updated

CVE-2026-92142: Apache Karaf · Missing Authorization

Affects Apache KarafSource CVE Database V5

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Not known to be exploited · CVSS 8.8 High : upgrade to 4.4.12 soon.

Data as of 12 Nov 2026, 23:25 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 49% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.4.12
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 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 13 Nov 2026.

What to do

Upgrade Apache Karaf and org.apache.karaf/apache-karaf to 4.4.12.

Affected software

ProductAffectedFixed in
Apache Software FoundationApache KarafAffected
  • <4.4.12
Fixed in
  • 4.4.12
Mavenorg.apache.karaf/apache-karafpkg:maven/org.apache.karaf/apache-karafOther threatsAffected
  • <4.4.12
Fixed in
  • 4.4.12

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

AI-suggested

A fix is available in Apache Karaf versions 4.4.12 and 4.5.0 or later, which adds createMBean, registerMBean, and unregisterMBean to the guarded operations list and restricts these operations to the 'admin' role by default. Users should upgrade to these versions as soon as possible. Until an upgrade is applied, restrict network access to the JMX RMI registry/server ports (1099 and 44444) to trusted hosts only, and avoid using non-'admin' JMX credentials to limit exposure.

Description

Apache Karaf versions before 4.4.12 have a vulnerability in the JMX MBeanServer access control. The KarafMBeanServerGuard enforces role-based access control (RBAC) on certain MBean operations but omits lifecycle operations like createMBean, registerMBean, and unregisterMBean from checks. This allows any authenticated JMX user, including those with minimal 'viewer' roles, to instantiate and remove arbitrary MBeans without authorization. Exploiting this, an attacker can instantiate the standard JDK MLet MBean to load and execute attacker-controlled classes remotely, leading to remote code execution. The issue is fixed by adding these lifecycle operations to the guarded list and restricting them to the 'admin' role in Apache Karaf 4.4.12 and later.

References

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