CVE-2026-10142
kafka-python prior to 2.3.2 Denial of Service via Protocol Parser Frame Length
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-789 |
| Vendor | dana powers |
| Product | kafka-python |
| Published | Jun 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Dana Powers / kafka-python
0 < 2.3.2
References
vulncheck.com: https://www.vulncheck.com/advisories/kafka-python-prior-to-denial-of-service-via-protocol-parser-frame-length github.com: https://github.com/dpkp/kafka-python/pull/3019 github.com: https://github.com/dpkp/kafka-python/pull/3026 github.com: https://github.com/dpkp/kafka-python/commit/6e4831444f972d169cdd11f5c8d50333cea3f19b
Credits
Katriel Moses