CVE-2025-27821

{"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": "2026-01-26T18:13:19.241Z"}, "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"}}, {"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.3, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-01-26T18:13:15.482570Z", "id": "CVE-2025-27821", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-26T18:13:19.241Z"}}]}}

{"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": "2026-01-26T18:13:19.241Z"}, "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"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.3, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2025-27821", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-01-26T18:13:15.482570Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-26T18:13:06.272Z"}}]}}

{"affected": [{"affectedData": [{"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"}]}], "source": "security@apache.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:apache:hadoop:*:*:*:*:*:*:*:*", "matchCriteriaId": "4EED8AAC-78E8-4337-97C1-7C8AAB2E7376", "versionEndExcluding": "3.4.2", "versionStartIncluding": "3.2.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "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."}, {"lang": "es", "value": "Vulnerabilidad de escritura fuera de l\u00edmites en el cliente nativo de Apache Hadoop HDFS.\n\nEste problema afecta a Apache Hadoop: desde la versi\u00f3n 3.2.0 hasta antes de la 3.4.2.\n\nSe recomienda a los usuarios actualizar a la versi\u00f3n 3.4.2, que corrige el problema."}], "id": "CVE-2025-27821", "lastModified": "2026-06-17T09:04:16.920", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-27821", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-01-26T18:13:15.482570Z", "version": "2.0.3"}}]}, "published": "2026-01-26T10:16:05.033", "references": [{"source": "security@apache.org", "tags": ["Mailing List", "Vendor Advisory"], "url": "https://lists.apache.org/thread/kwjhyyx0wl2z9b0mw0styjk0hhdbyplh"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2026/01/23/7"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "security@apache.org", "type": "Secondary"}]}

{}

{"created": "2026-01-27T20:17:54.874909+00:00", "updated": "2026-01-27T20:17:54.874935+00:00", "vendors": ["apache", "apache$PRODUCT$hadoop"]}