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kafka-python prior to 2.3.2 Denial of Service via Protocol Parser Frame Length

Type: advisorySource: Official CVE List1 source record

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.

Announced Group revision 1
Original source ↗

CVE-2026-10142

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-10142

kafka-python

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "Dana Powers",
    "product": "kafka-python",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "2.3.2",
        "versionType": "git"
      }
    ],
    "packageURL": "pkg:pypi/kafka-python",
    "collectionURL": "https://github.com/dpkp/kafka-python",
    "defaultStatus": "unknown"
  }
]
Related CVEs
CVE-2026-10142

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#12692 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement