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GHSA-3XF4-85XV-WMPW

Vulnerability from github – Published: 2026-10-20 09:31 – Updated: 2026-10-20 12:31

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-92287"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-20T09:17:12Z",
    "severity": null
  },
  "details": "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": "GHSA-3xf4-85xv-wmpw",
  "modified": "2026-10-20T12:31:30Z",
  "published": "2026-10-20T09:31:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92287"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/arrow/issues/51349"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/0t6vry0msbk9dpsd0xv395ov5b84hj57"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/10/19/6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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

Vulnerability from cvelistv5 – Published: 2026-10-20 08:15 – Updated: 2026-10-20 09:13

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 1085 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/apache/arrow/issues/51349	issue-tracking
https://lists.apache.org/thread/0t6vry0msbk9dpsd0…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/10/19/6

Impacted products

2 products

Vendor	Product	Version
Apache Software Foundation	Apache Arrow C++	Affected: 4.0.0 , < 26.0.0 (semver) Unaffected: 26.0.0 (semver)
Apache Software Foundation	PyArrow	Affected: 8.0.0 , < 26.0.0 (semver) Unaffected: 26.0.0 (semver)

Credits

n0mi1k

Show details on NVD website

JSON

To clipboard

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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.

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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.
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