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CVE-2025-30677

6.5 · MEDIUM

Apache Pulsar contains multiple connectors for integrating with Apache Kafka.

Published Apr 9, 2025CWE-532EPSS 0.73%

Overview

CVE-2025-30677 is a medium-severity vulnerability. It was published on April 9, 2025 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Apache Pulsar contains multiple connectors for integrating with Apache Kafka. The Pulsar IO Apache Kafka Source Connector, Sink Connector, and Kafka Connect Adaptor Sink Connector log sensitive configuration properties in plain text in application logs.

This vulnerability can lead to unintended exposure of credentials in log files, potentially allowing attackers with access to these logs to obtain Apache Kafka credentials. The vulnerability's impact is limited by the fact that an attacker would need access to the application logs to exploit this issue.

This issue affects Apache Pulsar IO's Apache Kafka connectors in all versions before 3.0.11, 3.3.6, and 4.0.4.

3.0.x version users should upgrade to at least 3.0.11.

3.3.x version users should upgrade to at least 3.3.6.

4.0.x version users should upgrade to at least 4.0.4.

Users operating versions prior to those listed above should upgrade to the aforementioned patched versions or newer versions.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reflists.apache.org/thread/zv5fwwrh374r1p5cmksxcd40ssxxko3dRefpulsar.apache.org/security/Refwww.openwall.com/lists/oss-security/2025/04/09/2

How CyberStrike helps

Frequently asked questions

What is CVE-2025-30677?

CVE-2025-30677 is a medium-severity vulnerability. It was published on April 9, 2025 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-30677?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-30677?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-30677?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-30677 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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