{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-27821", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2025-03-07T17:56:36.435Z", "datePublished": "2026-01-26T09:44:13.532Z", "dateUpdated": "2026-01-26T10:08:17.750Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://repo.maven.apache.org/maven2", "defaultStatus": "unaffected", "packageName": "org.apache.hadoop:hadoop-hdfs-native-client", "product": "HDFS native client", "vendor": "Apache Software Foundation", "versions": [{"lessThan": "3.4.2", "status": "affected", "version": "3.2.0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "reporter", "value": "BUI Ngoc Tan"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Out-of-bounds Write vulnerability in Apache Hadoop HDFS native client.</p><p>This issue affects Apache Hadoop: from 3.2.0 before 3.4.2.</p><p>Users are recommended to upgrade to version 3.4.2, which fixes the issue.</p>"}], "value": "Out-of-bounds Write vulnerability in Apache Hadoop HDFS native client.\n\nThis issue affects Apache Hadoop: from 3.2.0 before 3.4.2.\n\nUsers are recommended to upgrade to version 3.4.2, which fixes the issue."}], "metrics": [{"other": {"content": {"text": "moderate"}, "type": "Textual description of severity"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-01-26T09:44:13.532Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://lists.apache.org/thread/kwjhyyx0wl2z9b0mw0styjk0hhdbyplh"}], "source": {"defect": ["HDFS-17754"], "discovery": "EXTERNAL"}, "title": "HDFS native client: Out of bounds write in URI parser of native HDFS client", "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/01/23/7"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-01-26T10:08:17.750Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Out-of-bounds Write vulnerability in Apache Hadoop HDFS native client.\n\nThis issue affects Apache Hadoop: from 3.2.0 before 3.4.2.\n\nUsers are recommended to upgrade to version 3.4.2, which fixes the issue."}], "id": "CVE-2025-27821", "lastModified": "2026-01-26T15:03:33.357", "metrics": {}, "published": "2026-01-26T10:16:05.033", "references": [{"source": "security@apache.org", "url": "https://lists.apache.org/thread/kwjhyyx0wl2z9b0mw0styjk0hhdbyplh"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2026/01/23/7"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "security@apache.org", "type": "Primary"}]}

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