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.
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Fixes

Solution

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Workaround

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History

Fri, 30 Oct 2026 06:30:00 +0000

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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-10-30T06:04:14.196Z

Reserved: 2026-10-29T07:57:28.659Z

Link: CVE-2026-118952

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-30T07:16:33.410

Modified: 2026-10-30T07:16:33.547

Link: CVE-2026-118952

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-30T07:30:09Z

Weaknesses