5.3

CVE-2026-33558

Apache Kafka, Apache Kafka Clients: Information Exposure Through Network Client Log Output

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Apache ≫ Kafka Version >= 0.11.0.0 < 3.9.2
Apache ≫ Kafka Version4.0.0 Update-
Apache ≫ Kafka Version4.0.0 Updaterc0
Apache ≫ Kafka Version4.0.0 Updaterc1
Apache ≫ Kafka Version4.0.0 Updaterc3
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.14% 0.339
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
134c704f-9b21-4f2e-91b3-4a467353bcc0 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE-533 DEPRECATED: Information Exposure Through Server Log Files

This entry has been deprecated because its abstraction was too low-level. See CWE-532.