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CVE-2025-30677— Apache Pulsar IO Kafka Connector, Apache Pulsar IO Kafka Connect Adaptor: Sensitive information logged in Pulsar's Apache Kafka Connectors

Quick assessment

Affected
Apache Software Foundation Apache Pulsar IO Kafka Connector
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Pulsar是美国阿帕奇（Apache）基金会的一个用于云环境中，集消息、存储、轻量化函数式计算为一体的分布式消息流平台。该软件支持多租户、持久化存储、多机房跨区域数据复制，具有高可扩展性、高性能和低延时的特点。 Apache Pulsar存在安全漏洞，该漏洞源于日志中明文记录敏感配置属性，可能导致凭据泄露。

AI Predicted 5.5 Difficulty: Easy EPSS 0.73% · P54

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2025-30677

Vulnerability Information
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Vulnerability Title
Apache Pulsar IO Kafka Connector, Apache Pulsar IO Kafka Connect Adaptor: Sensitive information logged in Pulsar's Apache Kafka Connectors
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Pulsar 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Pulsar是美国阿帕奇（Apache）基金会的一个用于云环境中，集消息、存储、轻量化函数式计算为一体的分布式消息流平台。该软件支持多租户、持久化存储、多机房跨区域数据复制，具有高可扩展性、高性能和低延时的特点。 Apache Pulsar存在安全漏洞，该漏洞源于日志中明文记录敏感配置属性，可能导致凭据泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Pulsar IO Kafka Connector 2.3.0 ~ 3.0.11 -
Apache Software Foundation Apache Pulsar IO Kafka Connect Adaptor 2.3.0 ~ 3.0.11 -

II. Public POCs for CVE-2025-30677

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III. Intelligence Information for CVE-2025-30677

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Vendor Advisories for CVE-2025-30677 (1)

Same Patch Batch · Apache Software Foundation · 2025-04-09 · 3 CVEs total

CVE-2025-27391 Apache ActiveMQ Artemis: Passwords leaking from broker properties in the debug log
CVE-2025-31672 Apache POI: parsing OOXML based files (xlsx, docx, etc.), poi-ooxml could read unexpected

IV. Related Vulnerabilities

Same vendor: Apache Software Foundation
Same weakness: CWE-532