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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-116593

Apache Kafka: Kafka Connect configuration provider values exposed via validation REST API endpoint

Description

Apache Kafka Connect has the /connector-plugins/{connector-type}/config/validate endpoint on its REST API to validate connector configurations. Apache Kafka Connect also support Configuration Providers which enable to hide the values of sensitive configuration and only resolve them at runtime.  An attacker with access to the validate endpoint can use it to resolve and return plaintext values via any of the configuration providers installed on a Connect worker. Users are recommended to upgrade to version 4.2.2, 4.3.2, 4.4.0 or above, which fix this issue.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Apache Software Foundation Apache Kafka

Default version status: unaffected

  • 2.4.0 to < 4.2.2affected
  • 4.3.0 to < 4.3.2affected
pkg:maven/org.apache.kafka/connect-runtime

References