CVE-2026-116593

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{"bugzilla": {"description": "kafka: kafka: Information disclosure via configuration validation endpoint", "id": "2563017", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2563017"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-201", "details": ["Apache Kafka Connect has the /connector-plugins/{connector-type}/config/validate endpoint on its REST API to validate connector configurations.\nApache Kafka Connect also support Configuration Providers which enable to hide the values of sensitive configuration and only resolve them at runtime.\u00a0\nAn 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.\nUsers are recommended to upgrade to version 4.2.2, 4.3.2, 4.4.0 or above, which fix this issue.", "A flaw was found in Apache Kafka Connect. This vulnerability allows information disclosure when a remote attacker accesses the connector configuration validation endpoint. By submitting a request to this endpoint, an attacker can force installed configuration providers to resolve and return sensitive configuration values in plaintext, potentially exposing credentials and secrets."], "name": "CVE-2026-116593", "public_date": "2026-10-28T16:46:21Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-116593\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-116593\nhttps://kafka.apache.org/cve-list"], "statement": "This vulnerability is rated as an Important severity flaw because network actors who can reach the Kafka Connect REST interface can leverage configuration provider mechanisms to retrieve sensitive secrets and credentials, resulting in high confidentiality loss. In typical Red Hat deployments, including Red Hat AMQ Streams, Connect workers reside inside protected Kubernetes or OpenShift namespaces without public ingress. Consequently, the operational risk is primarily present when the worker REST API is exposed across untrusted network boundaries or lacks ingress network policy restrictions.", "threat_severity": "Important"}

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