Not rated
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 and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Apache Kafka 4.3 | 4.3.0 → < 4.3.2 | 4.3.2 |
| Apache Kafka 2.4 | 2.4.0 → < 4.2.2 | 4.2.2 |
References
- kafka.apache.org kafka.apache.org
- lists.apache.org lists.apache.org
Timeline
- Published
- Last modified
Other CVEs of Apache Kafka
The 23 CVEs of Apache Kafka →
CVE-2026-114349
Apache Kafka: Denial of service via unbounded memory allocation when decoding compressed record batches
Not rated
CVE-2026-112375
Apache Kafka: Unauthorized principal can read arbitrary broker files via IncrementalAlterConfigs
Not rated
CVE-2026-115644
Apache Kafka: Connect Admin REST API Authentication Bypass via Unapplied REST Extensions
Not rated
CVE-2026-111551
Apache Kafka: Denial of service in Kafka Streams and client deserializers via unbounded memory allocation
Not rated