Vulnerability-Lookup

GHSA-M3PX-Q5GJ-J9X7

Vulnerability from github – Published: 2026-06-11 00:32 – Updated: 2026-06-11 00:32

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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-10142"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-789"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-10T22:16:55Z",
    "severity": "HIGH"
  },
  "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": "GHSA-m3px-q5gj-j9x7",
  "modified": "2026-06-11T00:32:04Z",
  "published": "2026-06-11T00:32:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10142"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dpkp/kafka-python/pull/3019"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dpkp/kafka-python/pull/3026"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dpkp/kafka-python/commit/6e4831444f972d169cdd11f5c8d50333cea3f19b"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/kafka-python-prior-to-denial-of-service-via-protocol-parser-frame-length"
    }
  ],
  "schema_version": "1.4.0",
  "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

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

Vulnerability from cvelistv5 – Published: 2026-06-10 20:13 – Updated: 2026-06-23 16:13

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 (v2.0.3)

CWE

CWE-789 - Memory Allocation with Excessive Size Value

Assigner

VulnCheck

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)

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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                "id": "CVE-2026-10142",
                "options": [
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                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-11T14:12:48.592271Z",
                "version": "2.0.3"
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          "collectionURL": "https://github.com/dpkp/kafka-python",
          "defaultStatus": "unknown",
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          "vendor": "Dana Powers",
          "versions": [
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              "status": "affected",
              "version": "0",
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            }
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    "datePublished": "2026-06-10T20:13:11.286Z",
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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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-M3PX-Q5GJ-J9X7

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

Tags

Sightings

Nomenclature