CVE-2026-118952

Kroxylicious-authorizer-acl: kroxylicious: acl prefix matching can bypass authorization rules

Published Oct 30, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
A flaw was found in the Kroxylicious ACL authorizer. Its prefix-matching logic may apply a rule to a principal of a different type, or fail to check a broader matching rule when prefixes overlap. Depending on the ACL configuration, this may allow an authenticated Kafka client to access a resource (such as read a topic) that should be denied.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

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History
Type Values Removed Values Added
Description A flaw was found in the Kroxylicious ACL authorizer. Its prefix-matching logic may apply a rule to a principal of a different type, or fail to check a broader matching rule when prefixes overlap. Depending on the ACL configuration, this may allow an authenticated Kafka client to access a resource (such as read a topic) that should be denied.
Title Kroxylicious-authorizer-acl: kroxylicious: acl prefix matching can bypass authorization rules
First Time appeared Redhat
Redhat amq Streams
Weaknesses CWE-863
CPEs cpe:/a:redhat:amq_streams:2
cpe:/a:redhat:amq_streams:3
Vendors & Products Redhat
Redhat amq Streams
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Nov 12, 2026, 7:00 PM
Reserved
Oct 29, 2026, 7:57 AM
Status
Awaiting Analysis
Published
Oct 30, 2026, 7:16 AM
Modified
Nov 12, 2026, 7:16 PM
Severity
Important
Public date
Oct 28, 2026, 10:54 AM