CVE-2026-10142

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/dpkp/kafka-python/commit/6e4831444f972d169cdd11f5c8d50333cea3f19b	Patch
https://github.com/dpkp/kafka-python/pull/3019	Issue Tracking Patch
https://github.com/dpkp/kafka-python/pull/3026	Issue Tracking Patch
https://www.vulncheck.com/advisories/kafka-python-prior-to-denial-of-service-via-protocol-parser-frame-length	Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:dpkp:kafka-python:*:*:*:*:*:python:*:*

History

No history.

Information

Published : 2026-06-10 22:16

Updated : 2026-07-23 09:10

NVD link : CVE-2026-10142

Mitre link : CVE-2026-10142

CVE.ORG link : CVE-2026-10142

JSON object : View

Products Affected

dpkp

kafka-python

CWE

CWE-789

Memory Allocation with Excessive Size Value

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