PT-2026-48530 · Dana Powers · Kafka-Python

Katriel Moses · Published 2026-06-10 · Updated 2026-06-10 · CVE-2026-10142

NVD

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Fix

Weakness Enumeration

CWE-789

Related Identifiers

CVE-2026-10142

Affected Products

Kafka-Python

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-10142 · Security Note
• https://github.com/dpkp/kafka-python/commit/6e4831444f972d169cdd11f5c8d50333cea3f19b · Patch
• https://github.com/dpkp/kafka-python/pull/3026 · Note
• https://github.com/dpkp/kafka-python/pull/3019 · Note
• https://vulncheck.com/advisories/kafka-python-prior-to-denial-of-service-via-protocol-parser-frame-length · Note