Vulnerability-Lookup

UBUNTU-CVE-2026-10142 (CVE-2026-10142)

Vulnerability from osv_ubuntu – Published: 2026-06-10 22:16 – Updated: 2026-06-17 04:26 – Source website

Details

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.

Severity

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

8.7 (High)


                    
                      CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-10142	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-10142	REPORT
	https://github.com/dpkp/kafka-python/pull/3019	REPORT
	https://github.com/dpkp/kafka-python/pull/3026	REPORT
	https://github.com/dpkp/kafka-python/commit/6e483…	REPORT
	https://www.vulncheck.com/advisories/kafka-python…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python-kafka",
            "binary_version": "0.9.3-2"
          },
          {
            "binary_name": "python3-kafka",
            "binary_version": "0.9.3-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "python-kafka",
        "purl": "pkg:deb/ubuntu/python-kafka@0.9.3-2?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.9.3-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python-kafka",
            "binary_version": "1.3.2-0ubuntu1"
          },
          {
            "binary_name": "python3-kafka",
            "binary_version": "1.3.2-0ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "python-kafka",
        "purl": "pkg:deb/ubuntu/python-kafka@1.3.2-0ubuntu1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.3.2-0ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-kafka",
            "binary_version": "1.4.6-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "python-kafka",
        "purl": "pkg:deb/ubuntu/python-kafka@1.4.6-1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.4.3-1",
        "1.4.6-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-kafka",
            "binary_version": "2.0.2-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "python-kafka",
        "purl": "pkg:deb/ubuntu/python-kafka@2.0.2-2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.1-2",
        "2.0.2-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-kafka",
            "binary_version": "2.0.2-5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "python-kafka",
        "purl": "pkg:deb/ubuntu/python-kafka@2.0.2-5?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.2-4",
        "2.0.2-5"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-kafka",
            "binary_version": "2.0.2-9"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "python-kafka",
        "purl": "pkg:deb/ubuntu/python-kafka@2.0.2-9?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.2-9"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-kafka",
            "binary_version": "2.0.2-11"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "python-kafka",
        "purl": "pkg:deb/ubuntu/python-kafka@2.0.2-11?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.2-9",
        "2.0.2-10",
        "2.0.2-11"
      ]
    }
  ],
  "aliases": [],
  "details": "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.",
  "id": "UBUNTU-CVE-2026-10142",
  "modified": "2026-06-17T04:26:58Z",
  "published": "2026-06-10T22:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-10142"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-10142"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/dpkp/kafka-python/pull/3019"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/dpkp/kafka-python/pull/3026"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/dpkp/kafka-python/commit/6e4831444f972d169cdd11f5c8d50333cea3f19b"
    },
    {
      "type": "REPORT",
      "url": "https://www.vulncheck.com/advisories/kafka-python-prior-to-denial-of-service-via-protocol-parser-frame-length"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-10142"
  ]
}

CVE-2026-10142 (GCVE-0-2026-10142)

Vulnerability from cvelistv5 – Published: 2026-06-10 20:13 – Updated: 2026-07-14 15:53

Title

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

Summary

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-11 14:12 UTC

CWE

CWE-789 - Memory Allocation with Excessive Size Value

Assigner

VulnCheck mitre root

References

4 references

URL	Tags
https://www.vulncheck.com/advisories/kafka-python…	technical-descriptionthird-party-advisory
https://github.com/dpkp/kafka-python/pull/3019	issue-tracking
https://github.com/dpkp/kafka-python/pull/3026	issue-tracking
https://github.com/dpkp/kafka-python/commit/6e483…	patch

Impacted products

1 product

Vendor	Product	Version
Dana Powers	kafka-python	Affected: 0 , < 2.3.2 (git) cpe:2.3:a:dpkp:kafka-python::::::python::*

Date Public

2026-06-10 00:00

Credits

Katriel Moses

Show details on NVD website

JSON

To clipboard

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  "containers": {
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        "metrics": [
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              "content": {
                "id": "CVE-2026-10142",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-11T14:12:48.592271Z",
                "version": "2.0.3"
              },
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        },
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      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/dpkp/kafka-python",
          "defaultStatus": "unknown",
          "product": "kafka-python",
          "vendor": "Dana Powers",
          "versions": [
            {
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              "status": "affected",
              "version": "0",
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      ],
      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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UBUNTU-CVE-2026-10142 (CVE-2026-10142)

CVE-2026-10142 (GCVE-0-2026-10142)

Tags

Sightings

Nomenclature

Related by attack behaviour