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CVE-2026-118952medium6.5

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

Impact

A flaw in the Kroxylicious ACL authorizer's prefix-matching logic may allow an authenticated Kafka client to access a resource that should be denied. The issue affects Red Hat streams for Apache Kafka 3. The impact depends on the ACL configuration.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

Red Hat · redhat

streams for Apache Kafka 2

0 ranges
redhat version evidence

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affected

unaffected

unknown

Other versions: unaffected

Product identifiers (CPE)cpe:/a:redhat:amq_streams:2

Red Hat · redhat

streams for Apache Kafka 3

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redhat version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

unaffected

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:amq_streams:3

Original source 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.

Inside the record

Evidence available

Package identity · not supplied
Version evidence · not supplied
Remediation guidance · not supplied
Weakness classification
Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-118952

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-863 ↗

Incorrect Authorization

redhat

Related →
Contributing organizations · 1
redhat

Assigning organization

2026-10-30

What changed

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References

3 sources
access.redhat.com/security/cve/CVE-2026-118952
vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi
issue-trackingredhat
github.com/kroxylicious/kroxylicious/security/advisories/GHSA-qvv3-6w3q-hgqc
Security advisoryredhat