CVE-2026-91048 Apache Karaf - Privilege Escalation & Remote Code Execution

Apache Karaf contains a privilege escalation to remote code execution caused by lack of ACL rules for jdbc:* and jms:* shell commands, letting authenticated users with viewer role execute arbitrary code via crafted JDBC URLs, exploit requires authenticated shell session with viewer role.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.54% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Privilege Escalation
Impact
Remote Code Execution, Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
29 September 2026
Updated
15 October 2026
Weakness
CWE-862

Vendor fix

Apply patches or updates that enforce ACL rules for jdbc:* and jms:* shell commands or upgrade to the latest version.

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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