Vulnerability-Lookup

GHSA-MF84-Q3CW-6CH9

Vulnerability from github – Published: 2026-10-28 18:32 – Updated: 2026-10-28 21:31

Details

An attacker with access to the validate endpoint can use it to resolve and return plaintext values via any of the configuration providers installed on a Connect worker.

Users are recommended to upgrade to version 4.2.2, 4.3.2, 4.4.0 or above, which fix this issue.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-116593"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-28T17:18:00Z",
    "severity": null
  },
  "details": "Apache Kafka Connect has the /connector-plugins/{connector-type}/config/validate endpoint on its REST API to validate connector configurations.\nApache Kafka Connect also support Configuration Providers which enable to hide the values of sensitive configuration and only resolve them at runtime.\u00a0\n\nAn attacker with access to the validate endpoint can use it to resolve and return plaintext values via any of the configuration providers installed on a Connect worker.\n\nUsers are recommended to upgrade to version 4.2.2, 4.3.2, 4.4.0 or above, which fix this issue.",
  "id": "GHSA-mf84-q3cw-6ch9",
  "modified": "2026-10-28T21:31:14Z",
  "published": "2026-10-28T18:32:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-116593"
    },
    {
      "type": "WEB",
      "url": "https://kafka.apache.org/cve-list"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/10/28/16"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-116593 (GCVE-0-2026-116593)

Vulnerability from cvelistv5 – Published: 2026-10-28 16:46 – Updated: 2026-10-28 20:07

Title

Apache Kafka: Kafka Connect configuration provider values exposed via validation REST API endpoint

Summary

Apache Kafka Connect has the /connector-plugins/{connector-type}/config/validate endpoint on its REST API to validate connector configurations. Apache Kafka Connect also support Configuration Providers which enable to hide the values of sensitive configuration and only resolve them at runtime. An attacker with access to the validate endpoint can use it to resolve and return plaintext values via any of the configuration providers installed on a Connect worker. Users are recommended to upgrade to version 4.2.2, 4.3.2, 4.4.0 or above, which fix this issue.

Severity

No CVSS data available.

Assigner

apache CNA under the mitre root

CNA scorecard B 76/100 over 1090 records in the last 180 days details

References

2 references

URL	Tags
https://kafka.apache.org/cve-list	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/1…

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Kafka	Affected: 2.4.0 , < 4.2.2 (semver) Affected: 4.3.0 , < 4.3.2 (semver)

Credits

Hyunwoo Kim <imv4bel@gmail.com> Sudhanshu Chauhan <sudhanshu@redhuntlabs.com>, RedHunt Labs Bartłomiej Dmitruk <bartek@striga.ai>, Striga Andrew MacPherson <andrew@andrewmohawk.com> Mickael Maison <mickael.maison@gmail.com>

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-10-28T20:07:01.640Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/10/28/16"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.kafka:connect-runtime",
          "packageURL": "pkg:maven/org.apache.kafka/connect-runtime",
          "product": "Apache Kafka",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "4.2.2",
              "status": "affected",
              "version": "2.4.0",
              "versionType": "semver"
            },
            {
              "lessThan": "4.3.2",
              "status": "affected",
              "version": "4.3.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Hyunwoo Kim \u003cimv4bel@gmail.com\u003e"
        },
        {
          "lang": "en",
          "type": "reporter",
          "value": "Sudhanshu Chauhan \u003csudhanshu@redhuntlabs.com\u003e, RedHunt Labs"
        },
        {
          "lang": "en",
          "type": "reporter",
          "value": "Bart\u0142omiej Dmitruk \u003cbartek@striga.ai\u003e, Striga"
        },
        {
          "lang": "en",
          "type": "reporter",
          "value": "Andrew MacPherson \u003candrew@andrewmohawk.com\u003e"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Mickael Maison \u003cmickael.maison@gmail.com\u003e"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Apache Kafka Connect has the /connector-plugins/{connector-type}/config/validate endpoint on its REST API to validate connector configurations.\u003cbr\u003eApache Kafka Connect also support Configuration Providers which enable to hide the values of sensitive configuration and only resolve them at runtime.\u0026nbsp;\u003cbr\u003e\u003cbr\u003eAn attacker with access to the validate endpoint can use it to resolve and return plaintext values via any of the configuration providers installed on a Connect worker.\u003cbr\u003e\u003cbr\u003eUsers are recommended to upgrade to version 4.2.2, 4.3.2, 4.4.0 or above, which fix this issue."
            }
          ],
          "value": "Apache Kafka Connect has the /connector-plugins/{connector-type}/config/validate endpoint on its REST API to validate connector configurations.\nApache Kafka Connect also support Configuration Providers which enable to hide the values of sensitive configuration and only resolve them at runtime.\u00a0\n\nAn attacker with access to the validate endpoint can use it to resolve and return plaintext values via any of the configuration providers installed on a Connect worker.\n\nUsers are recommended to upgrade to version 4.2.2, 4.3.2, 4.4.0 or above, which fix this issue."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "text": "moderate"
            },
            "type": "Textual description of severity"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-28T16:46:21.415Z",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://kafka.apache.org/cve-list"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Apache Kafka: Kafka Connect configuration provider values exposed via validation REST API endpoint",
      "x_generator": {
        "engine": "Vulnogram 1.0.3"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2026-116593",
    "datePublished": "2026-10-28T16:46:21.415Z",
    "dateReserved": "2026-10-26T15:15:31.645Z",
    "dateUpdated": "2026-10-28T20:07:01.640Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted