CVE-2026-116593
Apache Kafka Connect has the /connector-plugins/{connector-type}/config/validate endpoint on its REST API to validate connector configurations. Apache Kafka Connect also support Configuration Providers which enable to hide the values of sensitive configuration and only resolve them at runtime. An attacker with access to the validate endpoint can use it to resolve and return plaintext values via any of the configuration providers installed on a Connect worker. Users are recommended to upgrade to version 4.2.2, 4.3.2, 4.4.0 or above, which fix this issue.
- Score
- –
- Published
- 2026-10-28
- Links
- NVD · cve.org · Report wrong data
Matched ports (1)
| Port | Package | Version | Status | Maintainer |
|---|---|---|---|---|
| net/kafka | kafka | 4.3.1 | unaddressed | timp87@gmail.com |
Template for a VuXML entry
Package names, ranges and the XML itself can be wrong. Always check the content before you commit it, and run make validate in security/vuxml. The generator is being rewritten from scratch.
Range per package from the CVE record, for ports with a version line in their name (python312) only from that line. make newentry in security/vuxml creates the vid.
<vuln vid="FIXME (make newentry)">
<topic>FIXME -- FIXME</topic>
<affects>
<package>
<name>kafka</name>
<range><lt>4.3.2</lt></range>
</package>
</affects>
<description>
<body xmlns="http://www.w3.org/1999/xhtml">
<p>Apache Kafka Connect has the
/connector-plugins/{connector-type}/config/validate endpoint on its
REST API to validate connector configurations. Apache Kafka Connect
also support Configuration Providers which enable to hide the values
of sensitive configuration and only resolve them at runtime.</p>
<p>An attacker with access to the validate endpoint can use it to resolve
and return plaintext values via any of the configuration providers
installed on a Connect worker.</p>
<p>Users are recommended to upgrade to version 4.2.2, 4.3.2, 4.4.0 or
above, which fix this issue.</p>
</body>
</description>
<references>
<cvename>CVE-2026-116593</cvename>
<url>https://nvd.nist.gov/vuln/detail/CVE-2026-116593</url>
</references>
<dates>
<discovery>2026-10-28</discovery>
<entry>2026-10-28</entry>
</dates>
</vuln>