Description
Information exposure vulnerability has been identified in Apache Kafka. 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. We advise the Kafka users to upgrade to v3.9.2, v4.0.1, or later to avoid this vulnerability.
INFO
Published Date :
2026-04-20T13:20:38.059Z
Last Modified :
2026-04-20T14:20:41.640Z
Source :
apache
AFFECTED PRODUCTS
The following products are affected by CVE-2026-33558 vulnerability.
| Vendors | Products |
|---|---|
| Apache |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-33558.
