CVE-2026-91006 Apache Karaf - Command Injection

Apache Karaf contains a command injection vulnerability caused by unquoted caller-supplied javaOpts in InstanceServiceImpl command line construction, letting attackers execute arbitrary OS commands as the Karaf process user, exploit requires access to instance management commands or JMX operations.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
1.14% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Command Injection
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
28 September 2026
Updated
15 October 2026
Weakness
CWE-78

Vendor fix

Restrict access to instance management commands and JMX operations, set karaf.secured.command.compulsory.roles=admin, and ensure javaOpts input is trusted or properly sanitized.

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

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