{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-73334",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-73334",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-09T10:48:46.250Z",
    "updatedAt": "2026-09-10T17:55:48.179Z",
    "importedAt": "2026-10-24T01:58:30.346Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Apache Parquet Hadoop: File-controlled KMS URL is forwarded to pluggable KmsClient that skips host validation",
      "summary": "Potential problem for users of the org.apache.parquet.crypto.keytools package in Apache Parquet, versions 1.12 to 1.18. \nThis package enables users to encrypt Parquet files via an envelope encryption mechanism that wraps (encrypts) data keys via a Key Management Service (KMS). \nOn the reader side, the KMS URL can be application-controlled 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 pluggable implementation does not perform host validation, a KMS token can be sent to a malicious host set by an attacker in the file.\n\nBefore the problem is fixed, users are recommended to leverage application control for KMS URL parameter in readers (versions 1.12-1.18).\nAfter the problem is fixed (presumably in version 1.19), the upgrade will disable file-controlled KMS URL by default. Users of the KMS URL parameter \nwill have two options then: leverage application control for KMS URL parameter in readers, or enable file-controlled KMS URL (via a new app parameter).\nThe latter option will explicitly require (in the new parameter documentation) to validate the KMS URL and use authentication in the custom implementation of the KMS client plug in.",
      "affected": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Parquet Hadoop",
          "packageName": "org.apache.parquet.crypto.keytools:parquet-hadoop",
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "1.12",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "1.18.0"
            }
          ]
        }
      ]
    }
  }
}