Bug 2371365 (CVE-2025-27819) - CVE-2025-27819 org.apache.kafka: Kafka JNDI Login Module RCE Vulnerability
Summary: CVE-2025-27819 org.apache.kafka: Kafka JNDI Login Module RCE Vulnerability
Keywords:
Status: NEW
Alias: CVE-2025-27819
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
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Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-06-10 08:01 UTC by OSIDB Bzimport
Modified: 2025-06-11 15:10 UTC (History)
87 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-06-10 08:01:05 UTC 
In CVE-2023-25194, we announced the RCE/Denial of service attack via SASL JAAS JndiLoginModule configuration in Kafka Connect API. But not only Kafka Connect API is vulnerable to this attack, the Apache Kafka brokers also have this vulnerability. To exploit this vulnerability, the attacker needs to be able to connect to the Kafka cluster and have the AlterConfigs permission on the cluster resource.


Since Apache Kafka 3.4.0, we have added a system property ("-Dorg.apache.kafka.disallowed.login.modules") to disable the problematic login modules usage in SASL JAAS configuration. Also by default "com.sun.security.auth.module.JndiLoginModule" is disabled in Apache Kafka 3.4.0, and "com.sun.security.auth.module.JndiLoginModule,com.sun.security.auth.module.LdapLoginModule" is disabled by default in in Apache Kafka 3.9.1/4.0.0
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