Remote Code Execution (RCE)

org.apache.kafka, kafka is vulnerable to Remote Code Execution RCE. The vulnerability is due to improper validation and unrestricted setting of the sasl.jaas.config property in Kafka Connect configurations, which allows an attacker to specify malicious LDAP login modules that trigger unsafe Java...

CVE-2025-27817

A flaw was found in apache-kafka. The Kafka client improperly handles configuration data for SASL/OAUTHBEARER connections, allowing an attacker to specify a crafted token endpoint URL. This allows for arbitrary file reads and server-side request forgery SSRF by a malicious client. Consequently,...

CVE-2025-27818

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...

Apache Kafka Deserialization of Untrusted Data vulnerability

A possible security vulnerability has been identified in Apache Kafka. This requires access to a alterConfig to the cluster resource, or Kafka Connect worker, and the ability to create/modify connectors on it with an arbitrary Kafka client SASL JAAS config and a SASL-based security protocol, whic...

Apache Kafka Deserialization of Untrusted Data vulnerability

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 ...

Apache Kafka Client Arbitrary File Read and Server Side Request Forgery Vulnerability

A possible arbitrary file read and SSRF vulnerability has been identified in Apache Kafka Client. Apache Kafka Clients accept configuration data for setting the SASL/OAUTHBEARER connection with the brokers, including "sasl.oauthbearer.token.endpoint.url" and "sasl.oauthbearer.jwks.endpoint.url"...

CVE-2025-27817

A possible arbitrary file read and SSRF vulnerability has been identified in Apache Kafka Client. Apache Kafka Clients accept configuration data for setting the SASL/OAUTHBEARER connection with the brokers, including "sasl.oauthbearer.token.endpoint.url" and "sasl.oauthbearer.jwks.endpoint.url"...

CVE-2025-27818

A possible security vulnerability has been identified in Apache Kafka. This requires access to a alterConfig to the cluster resource, or Kafka Connect worker, and the ability to create/modify connectors on it with an arbitrary Kafka client SASL JAAS config and a SASL-based security protocol, whic...

CVE-2025-27819

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 ...

CVE-2025-27817

CVE-2025-27817 : An arbitrary file read and SSRF flaw in the Apache Kafka Client (affecting Kafka Connect and related clients) allows untrusted configuration of SASL/OAUTHBEARER endpoint URLs to read local files or reach unintended URLs. Root cause: endpoints sasl.oauthbearer.token.endpoint.url a...

CVE-2025-27817 Apache Kafka Client: Arbitrary file read and SSRF vulnerability

A possible arbitrary file read and SSRF vulnerability has been identified in Apache Kafka Client. Apache Kafka Clients accept configuration data for setting the SASL/OAUTHBEARER connection with the brokers, including "sasl.oauthbearer.token.endpoint.url" and "sasl.oauthbearer.jwks.endpoint.url"...

CVE-2025-27817 Apache Kafka Client: Arbitrary file read and SSRF vulnerability

A possible arbitrary file read and SSRF vulnerability has been identified in Apache Kafka Client. Apache Kafka Clients accept configuration data for setting the SASL/OAUTHBEARER connection with the brokers, including "sasl.oauthbearer.token.endpoint.url" and "sasl.oauthbearer.jwks.endpoint.url"...

CVE-2025-27817 Apache Kafka Client: Arbitrary file read and SSRF vulnerability

A possible arbitrary file read and SSRF vulnerability has been identified in Apache Kafka Client. Apache Kafka Clients accept configuration data for setting the SASL/OAUTHBEARER connection with the brokers, including "sasl.oauthbearer.token.endpoint.url" and "sasl.oauthbearer.jwks.endpoint.url"...

CVE-2025-27819

CVE-2025-27819 describes a Kafka vulnerability enabling RCE/Denial of Service via SASL JAAS JndiLoginModule configuration, affecting Kafka Connect API and Apache Kafka brokers. Exploitation requires network access to the cluster and the AlterConfigs permission on the cluster resource. The root ca...

CVE-2025-27819 Apache Kafka: Possible RCE/Denial of service attack via SASL JAAS JndiLoginModule configuration

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 ...

CVE-2025-27819 Apache Kafka: Possible RCE/Denial of service attack via SASL JAAS JndiLoginModule configuration

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 ...

CVE-2025-27819 Apache Kafka: Possible RCE/Denial of service attack via SASL JAAS JndiLoginModule configuration

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 ...

CVE-2025-27818 Apache Kafka: Possible RCE attack via SASL JAAS LdapLoginModule configuration

A possible security vulnerability has been identified in Apache Kafka. This requires access to a alterConfig to the cluster resource, or Kafka Connect worker, and the ability to create/modify connectors on it with an arbitrary Kafka client SASL JAAS config and a SASL-based security protocol, whic...

CVE-2025-27818 Apache Kafka: Possible RCE attack via SASL JAAS LdapLoginModule configuration

A possible security vulnerability has been identified in Apache Kafka. This requires access to a alterConfig to the cluster resource, or Kafka Connect worker, and the ability to create/modify connectors on it with an arbitrary Kafka client SASL JAAS config and a SASL-based security protocol, whic...

CVE-2025-27818

Summary of CVE-2025-27818 (Apache Kafka): The issue involves an authenticated operator who, via alterConfig on a cluster resource (or Kafka Connect worker) and by modifying connector configs through the REST API, can set sasl.jaas.config on Kafka clients to an LDAP/JndiLoginModule path (e.g., com...