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CVE-2025-27818

apache-kafka: Apache Kafka: Possible RCE attack via SASL JAAS LdapLoginModule configuration

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Severity

Important

Red Hat Product Security

8

CVSS 3.1

Review impact separately from score.

Published · June 10, 2025

Updated · June 28, 2026

Description

A flaw was found in apache-kafka. This issue occurs due to improper handling of configuration data when using a Kafka client SASL JAAS, allowing an attacker with access to alterConfig for a cluster resource or Kafka Connect worker to inject arbitrary configuration. This injection can lead to the creation or modification of connectors with malicious configurations. Consequently, this can allow an attacker to compromise the integrity and availability of the Kafka cluster or Kafka Connect worker.

Statement

No Red Hat products are affected by this flaw.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 8
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

CWE-502 · Deserialization of Untrusted Data