VULNERABILITY INTELLIGENCE

CVE-2026-10142

CVSS score8.7 HIGH
EPSS probability0.35%
CISA KEVNot currently listed
Published2026-06-10
Last modified2026-10-08
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Description

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.

Weakness classification

  • CWE-789: Memory Allocation with Excessive Size Value

Primary references