CVE-2026-41115

The implementation of the CONSUMER_GROUP_DESCRIBE (69) API validates the DESCRIBE operation on the GROUP resource instead of the READ operation that documented in the official kafka documentation and the KIP-848. This discrepancy can result in misconfigured Access Control Lists (ACLs) and unintended security postures, like granting READ permission to users who should not be able to join/sync groups, or allowing users without READ permission (but with DESCRIBE permission) to access sensitive group metadata.

The correct permission for CONSUMER_GROUP_DESCRIBE API is DESCRIBE GROUP so the current implementation is correct. However, the kafka documentation as well as the KIP-848 will be updated to reflect the correct permission. We advise the Kafka users to review existing group ACLs to ensure the principle of least privilege.

Database specific

{
    "cna_assigner": "apache",
    "cwe_ids": [
        "CWE-285"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41115.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "4.0.0"
                },
                {
                    "last_affected": "4.3.0"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}

References

Affected packages

Git / github.com/apache/kafka

Affected ranges

Type

GIT

Repo

https://github.com/apache/kafka

Events

Introduced

985bc99521dd22bbf620591b8db8613c54f596b2

Last Affected

a9ce3221537b8653448750697915607dc7936cf3

Database specific

Show details

{
    "cpe": "cpe:2.3:a:apache:kafka:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "4.0.0"
        },
        {
            "last_affected": "4.3.0"
        }
    ],
    "source": "CPE_RANGE"
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-41115.json"