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CVE-2026-10142

CVE-2026-10142 · kafka-python prior to 2.3.2 Denial of Service via Protocol Parser Frame Length

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 8.7 · High · EPSS 0.3% · Fix available

Published
Updated

Stack: system · python

Affected products and versions

  • kafka-python

    Versions
    • ≥ 0, < 2.3.2: Affected (git)

    Update to 2.3.2

  • python-kafka Debian:12

    Versions
    • 2.0.2-10
    • 2.0.2-11
    • 2.0.2-12
    • 2.0.2-13
    • 2.0.2-3
    • 2.0.2-4
    • 2.0.2-5
    • 2.0.2-6
    • 2.0.2-7
    • 2.0.2-8
    • 2.0.2-9
    • 2.2.3-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-kafka Debian:13

    Versions
    • 2.0.2-10
    • 2.0.2-11
    • 2.0.2-12
    • 2.0.2-13
    • 2.0.2-9
    • 2.2.3-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-kafka Debian:14

    Versions
    • 2.0.2-10
    • 2.0.2-11
    • 2.0.2-12
    • 2.0.2-9
    Affected ranges
    • ECOSYSTEM: < 2.0.2-13

    Update to 2.0.2-13

  • kafka-python PyPI

    Versions
    • 0.9.0
    • 0.9.1
    • 0.9.2
    • 0.9.3
    • 0.9.4
    • 0.9.5
    • 1.0.0
    • 1.0.1
    • 1.0.2
    • 1.1.0
    • 1.1.1
    • 1.2.0
    • 1.2.1
    • 1.2.2
    • 1.2.3
    • 1.2.4
    • 1.2.5
    • 1.3.0
    • 1.3.1
    • 1.3.2
    • 1.3.3
    • 1.3.4
    • 1.3.5
    • 1.4.0
    • 1.4.1
    • 1.4.2
    • 1.4.3
    • 1.4.4
    • 1.4.5
    • 1.4.6
    • 1.4.7
    • 2.0.0
    • 2.0.1
    • 2.0.2
    • 2.0.3
    • 2.0.4
    • 2.0.5
    • 2.0.6
    • 2.1.0
    • 2.1.1
    • 2.1.2
    • 2.1.3
    • 2.1.4
    • 2.1.5
    • 2.1.6
    • 2.2.0
    • 2.2.1
    • 2.2.10
    • 2.2.11
    • 2.2.12
    • 2.2.13
    • 2.2.14
    • 2.2.15
    • 2.2.16
    • 2.2.17
    • 2.2.18
    • 2.2.19
    • 2.2.2
    • 2.2.20
    • 2.2.3
    • 2.2.4
    • 2.2.5
    • 2.2.6
    • 2.2.7
    • 2.2.8
    • 2.2.9
    • 2.3.0
    • 2.3.1
    Affected ranges
    • ECOSYSTEM: < 2.3.2

    Update to 2.3.2

  • python-kafka Ubuntu:16.04:LTS

    Versions
    • 0.9.3-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-kafka Ubuntu:18.04:LTS

    Versions
    • 1.3.2-0ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-kafka Ubuntu:20.04:LTS

    Versions
    • 1.4.3-1
    • 1.4.6-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-kafka Ubuntu:22.04:LTS

    Versions
    • 2.0.1-2
    • 2.0.2-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-kafka Ubuntu:24.04:LTS

    Versions
    • 2.0.2-4
    • 2.0.2-5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-kafka Ubuntu:25.10

    Versions
    • 2.0.2-9
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-kafka Ubuntu:26.10

    Versions
    • 2.0.2-11
    • 2.0.2-12
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-kafka Ubuntu:26.04:LTS

    Versions
    • 2.0.2-9
    • 2.0.2-10
    • 2.0.2-11
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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