GHSA-wf66-mphr-4c4r

The NetworkClient component will output entire requests and responses information in the DEBUG log level in the logs. By default, the log level is set to INFO level. If the DEBUG level is enabled, the sensitive information will be exposed via the requests and responses output log. The entire lists of impacted requests and responses are:

AlterConfigsRequest
AlterUserScramCredentialsRequest
ExpireDelegationTokenRequest
IncrementalAlterConfigsRequest
RenewDelegationTokenRequest
SaslAuthenticateRequest
createDelegationTokenResponse
describeDelegationTokenResponse
SaslAuthenticateResponse

This issue affects Apache Kafka: from any version supported the listed API above through v3.9.1, v4.0.0. Apache advises Kafka users to upgrade to v3.9.2, v4.0.1, or later to avoid this vulnerability.

Database specific

{
    "github_reviewed": true,
    "severity": "MODERATE",
    "github_reviewed_at": "2026-04-24T20:37:18Z",
    "nvd_published_at": "2026-04-20T14:16:19Z",
    "cwe_ids": [
        "CWE-532"
    ]
}

References

Affected packages

Maven / org.apache.kafka:kafka-clients

Package

Name: org.apache.kafka:kafka-clients; View open source insights on deps.dev
Purl: pkg:maven/org.apache.kafka/kafka-clients

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0.11.0

Fixed

3.9.2

Affected versions

0.*

0.11.0.0

0.11.0.1

0.11.0.2

0.11.0.3

1.*

1.0.0

1.0.1

1.0.2

1.1.0

1.1.1

2.*

2.0.0

2.0.1

2.1.0

2.1.1

2.2.0

2.2.1

2.2.2

2.3.0

2.3.1

2.4.0

2.4.1

2.5.0

2.5.1

2.6.0

2.6.1

2.6.2

2.6.3

2.7.0

2.7.1

2.7.2

2.8.0

2.8.1

2.8.2

3.*

3.0.0

3.0.1

3.0.2

3.1.0

3.1.1

3.1.2

3.2.0

3.2.1

3.2.2

3.2.3

3.3.0

3.3.1

3.3.2

3.4.0

3.4.1

3.5.0

3.5.1

3.5.2

3.6.0

3.6.1

3.6.2

3.7.0

3.7.1

3.7.2

3.8.0

3.8.1

3.9.0

3.9.1

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-wf66-mphr-4c4r/GHSA-wf66-mphr-4c4r.json"