CVE-2026-92287 (GCVE-0-2026-92287)

Vulnerability from cvelistv5 – Published: 2026-10-20 08:15 – Updated: 2026-10-20 09:13
VLAI
Title
Apache Arrow C++, PyArrow: Parquet file-controlled KMS URL is forwarded to pluggable KmsClient that skips host validation
Summary
Pass-through of unvalidated KMS URLs to KMS clients in Apache C++ Parquet and PyArrow versions 4.0.0 to 25.0.1. This affects users who read Parquet files and configure Parquet decryption properties with a KmsClient implementation. On the reader side, the KMS URL can be application-controlled (specified in the KmsConnectionConfig) or file-controlled. If the user does not leverage application control for this parameter, a file-controlled KMS URL is forwarded to a pluggable KmsClient implementation. If the KMS implementation does not perform host validation and makes use of the provided KMS URL, a KMS token can be sent to a malicious host set by an attacker in the file.  Users are recommended to upgrade to version 26.0.0, which disables this behavior by default and requires that users opt-in to it by enabling the read_kms_url flag in the DecryptionConfiguration. Users of affected versions are recommended to either specify the KMS URL in the KmsConnectionConfig when reading files, or ensure any KmsClient implementations validate received KMS URLs. Users that opt-in to file-controlled KMS URLs in version 26.0.0 and later must ensure KmsClients validate KMS URLs.
Severity
No CVSS data available.
CWE
  • CWE-20 - Improper input validation
Assigner
apache CNA under the mitre root
CNA scorecard B 76/100 over 1078 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Apache Software Foundation Apache Arrow C++ Affected: 4.0.0 , < 26.0.0 (semver)
Unaffected: 26.0.0 (semver)
guessed Create a notification for this product.
Apache Software Foundation PyArrow Affected: 8.0.0 , < 26.0.0 (semver)
Unaffected: 26.0.0 (semver)
guessed Create a notification for this product.
Credits
n0mi1k
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-10-20T09:13:16.676Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/10/19/6"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Apache Arrow C++",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "26.0.0",
              "status": "affected",
              "version": "4.0.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "26.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://pypi.python.org",
          "defaultStatus": "unaffected",
          "packageName": "pyarrow",
          "packageURL": "pkg:pypi/pyarrow",
          "product": "PyArrow",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "26.0.0",
              "status": "affected",
              "version": "8.0.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "26.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "n0mi1k"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003ePass-through of unvalidated KMS URLs to KMS clients in Apache C++ Parquet and PyArrow versions 4.0.0 to 25.0.1.\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003eThis affects users who read Parquet files and configure Parquet decryption properties with a KmsClient implementation.\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003eOn the reader side, the KMS URL can be application-controlled (specified in the\u0026nbsp;KmsConnectionConfig) or file-controlled.\nIf the user does not leverage application control for this parameter, a file-controlled KMS URL is forwarded to a pluggable KmsClient implementation. \nIf the KMS implementation does not perform host validation and makes use of the provided KMS URL, a KMS token can be sent to a malicious host set by an attacker in the file.\u0026nbsp;\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003eUsers are recommended to upgrade to version 26.0.0, which disables this behavior by default and requires that users opt-in to it by enabling the\u0026nbsp;read_kms_url flag in the\u0026nbsp;DecryptionConfiguration. Users of affected versions are recommended to either specify the KMS URL in the\u0026nbsp;KmsConnectionConfig when reading files, or ensure any KmsClient implementations validate received KMS URLs. Users that opt-in to file-controlled KMS URLs in version 26.0.0 and later must ensure KmsClients validate KMS URLs.\u003c/div\u003e"
            }
          ],
          "value": "Pass-through of unvalidated KMS URLs to KMS clients in Apache C++ Parquet and PyArrow versions 4.0.0 to 25.0.1.\n\n\n\n\nThis affects users who read Parquet files and configure Parquet decryption properties with a KmsClient implementation.\n\n\n\n\nOn the reader side, the KMS URL can be application-controlled (specified in the\u00a0KmsConnectionConfig) or file-controlled.\nIf the user does not leverage application control for this parameter, a file-controlled KMS URL is forwarded to a pluggable KmsClient implementation. \nIf the KMS implementation does not perform host validation and makes use of the provided KMS URL, a KMS token can be sent to a malicious host set by an attacker in the file.\u00a0\n\n\n\n\nUsers are recommended to upgrade to version 26.0.0, which disables this behavior by default and requires that users opt-in to it by enabling the\u00a0read_kms_url flag in the\u00a0DecryptionConfiguration. Users of affected versions are recommended to either specify the KMS URL in the\u00a0KmsConnectionConfig when reading files, or ensure any KmsClient implementations validate received KMS URLs. Users that opt-in to file-controlled KMS URLs in version 26.0.0 and later must ensure KmsClients validate KMS URLs."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "text": "moderate"
            },
            "type": "Textual description of severity"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20 Improper input validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-20T08:15:13.747Z",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/apache/arrow/issues/51349"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.apache.org/thread/0t6vry0msbk9dpsd0xv395ov5b84hj57"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "Apache Arrow C++, PyArrow: Parquet file-controlled KMS URL is forwarded to pluggable KmsClient that skips host validation",
      "x_generator": {
        "engine": "Vulnogram 1.0.3"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2026-92287",
    "datePublished": "2026-10-20T08:15:13.747Z",
    "dateReserved": "2026-09-15T23:14:11.831Z",
    "dateUpdated": "2026-10-20T09:13:16.676Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-92287",
      "date": "2026-10-27",
      "epss": "0.00217",
      "percentile": "0.1208"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Apache Arrow C++",
                "vendor": "Apache Software Foundation",
                "versions": [
                  {
                    "lessThan": "26.0.0",
                    "status": "affected",
                    "version": "4.0.0",
                    "versionType": "semver"
                  },
                  {
                    "status": "unaffected",
                    "version": "26.0.0",
                    "versionType": "semver"
                  }
                ]
              },
              {
                "collectionURL": "https://pypi.python.org",
                "defaultStatus": "unaffected",
                "packageName": "pyarrow",
                "packageURL": "pkg:pypi/pyarrow",
                "product": "PyArrow",
                "vendor": "Apache Software Foundation",
                "versions": [
                  {
                    "lessThan": "26.0.0",
                    "status": "affected",
                    "version": "8.0.0",
                    "versionType": "semver"
                  },
                  {
                    "status": "unaffected",
                    "version": "26.0.0",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "source": "security@apache.org"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Pass-through of unvalidated KMS URLs to KMS clients in Apache C++ Parquet and PyArrow versions 4.0.0 to 25.0.1.\n\n\n\n\nThis affects users who read Parquet files and configure Parquet decryption properties with a KmsClient implementation.\n\n\n\n\nOn the reader side, the KMS URL can be application-controlled (specified in the\u00a0KmsConnectionConfig) or file-controlled.\nIf the user does not leverage application control for this parameter, a file-controlled KMS URL is forwarded to a pluggable KmsClient implementation. \nIf the KMS implementation does not perform host validation and makes use of the provided KMS URL, a KMS token can be sent to a malicious host set by an attacker in the file.\u00a0\n\n\n\n\nUsers are recommended to upgrade to version 26.0.0, which disables this behavior by default and requires that users opt-in to it by enabling the\u00a0read_kms_url flag in the\u00a0DecryptionConfiguration. Users of affected versions are recommended to either specify the KMS URL in the\u00a0KmsConnectionConfig when reading files, or ensure any KmsClient implementations validate received KMS URLs. Users that opt-in to file-controlled KMS URLs in version 26.0.0 and later must ensure KmsClients validate KMS URLs."
          }
        ],
        "id": "CVE-2026-92287",
        "lastModified": "2026-10-20T19:35:38.940",
        "metrics": {},
        "published": "2026-10-20T09:17:12.063",
        "references": [
          {
            "source": "security@apache.org",
            "url": "https://github.com/apache/arrow/issues/51349"
          },
          {
            "source": "security@apache.org",
            "url": "https://lists.apache.org/thread/0t6vry0msbk9dpsd0xv395ov5b84hj57"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.openwall.com/lists/oss-security/2026/10/19/6"
          }
        ],
        "sourceIdentifier": "security@apache.org",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-20"
              }
            ],
            "source": "security@apache.org",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-10-20T09:36:12+00:00",
      "cve": "CVE-2026-92287",
      "id": "CVE-2026-92287",
      "initial_release_date": "2026-10-20T08:15:13.747000+00:00",
      "product_status:known_affected": "104",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "arrow: pyarrow: arrow: Information disclosure via unvalidated KMS URLs in Parquet files",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-92287.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-10-23T16:31:18Z",
      "cve": "CVE-2026-92287",
      "id": "CVE-2026-92287",
      "initial_release_date": "2026-10-21T17:01:04Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-92287",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2026/cve-2026-92287.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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

JSON

Loading timeline…




    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.