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TI-2026-08886 Aliases CVE-2026-10142GHSA-m3px-q5gj-j9x7

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

Priority MEDIUM 44CWE-789Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 1 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-789.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00348 28th percentileScored 2026-11-07
Fix Partial kafka-python (PyPI): 2.3.2Red Hat: 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—kafka-python (PyPI)before 2.3.22.3.2Patch availableGHSA-m3px-q5gj-j9x7
  • kafka-python (PyPI) Vendor— Affected before 2.3.2 Fixed in 2.3.2 Patch available GHSA-m3px-q5gj-j9x7

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:dpkp:kafka-python:*:*:*:*:*:python:*:*before 2.3.2VulnerableDpkp
  • cpe:2.3:a:dpkp:kafka-python:*:*:*:*:*:python:*:* Versions before 2.3.2 Vulnerable ·Dpkp

Remediation

  • Fix · GHSA-m3px-q5gj-j9x7 kafka-python (PyPI) Fixed in 2.3.2 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Dana Powers kafka-python 2.3.2

    2 records Highest priority Priority MEDIUM 2 MEDIUM

    Other records, highest priority first

    • TI-2026-08887 kafka-python prior to 2.3.2 DoS via SCRAM Iteration Count in scram.pyPriority MEDIUM 44
    Show all 2 records →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Quay 3AffectedNo fix yet: Fix deferred

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-10142
  2. 2026-10-03 Alias added: GHSA-m3px-q5gj-j9x7

References

Patch 3

Advisory 1

Other 4

  • TI-2026-08887 kafka-python prior to 2.3.2 DoS via SCRAM Iteration Count in scram.py CVSS 4.0HIGH 8.7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences