Dana Powers kafka-python up to 2.3.1 Protocol Parser receive_bytes memory allocation

Summaryinfo

A vulnerability classified as problematic was found in Dana Powers kafka-python up to 2.3.1. Affected is the function receive_bytes of the component Protocol Parser. The manipulation results in memory allocation. This vulnerability is cataloged as CVE-2026-10142. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic has been found in Dana Powers kafka-python up to 2.3.1. Affected is the function receive_bytes of the component Protocol Parser. The manipulation with an unknown input leads to a memory allocation vulnerability. CWE is classifying the issue as CWE-789. The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated. This is going to have an impact on availability. CVE summarizes:

kafka-python prior to 2.3.2 contains a denial-of-service vulnerability in the protocol parser that allows a malicious broker or machine-in-the-middle attacker to exhaust memory or hang connections by sending a crafted 4-byte frame length value without bounds validation. Attackers can send a specially crafted frame length through the receive_bytes() function to trigger either a multi-gigabyte memory allocation or an uncaught ValueError that leaves the connection in a broken state, causing requests to hang and consumers to stop heartbeating until restart.

The weakness was shared by Katriel Moses. The advisory is available at vulncheck.com. This vulnerability is traded as CVE-2026-10142 since 05/29/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

Upgrading to version 2.3.2 eliminates this vulnerability. Applying the patch 6e4831444f972d169cdd11f5c8d50333cea3f19b is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Programming Language Software

Vendor

• Dana Powers

Name

• kafka-python

Version

• 2.3.0
• 2.3.1

License

• open-source

CPE 2.3info

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• 🔒

CPE 2.2info

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• 🔒

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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