CVE-2026-6460

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-6460", "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "state": "PUBLISHED", "assignerShortName": "PostgreSQL", "dateReserved": "2026-04-17T00:15:46.725Z", "datePublished": "2026-11-12T14:15:32.415Z", "dateUpdated": "2026-11-13T05:02:34.185Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "shortName": "PostgreSQL", "dateUpdated": "2026-11-12T14:15:32.415Z"}, "title": "PostgreSQL type confusion after ALTER ... SET DATA TYPE executes arbitrary code", "x_postgresql": {"component": "core server"}, "descriptions": [{"lang": "en", "value": "Type confusion in PostgreSQL allows an object creator to execute arbitrary code as the operating system user running the database, via ALTER ... SET DATA TYPE primarily. Other DDL attack routes exist, such as \"ALTER TABLE ... ADD COLUMN; ROLLBACK; ALTER TABLE ... ADD COLUMN\". The system had inadequate tracking of typed values, and values were not self-identifying. Stale values could appear in data dictionary entries, PL/pgSQL variables, and many other parts of the system. PostgreSQL Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected."}], "affected": [{"defaultStatus": "unaffected", "product": "PostgreSQL", "vendor": "n/a", "versions": [{"lessThan": "18.7", "status": "affected", "version": "18", "versionType": "rpm"}, {"lessThan": "17.12", "status": "affected", "version": "17", "versionType": "rpm"}, {"lessThan": "16.16", "status": "affected", "version": "16", "versionType": "rpm"}, {"lessThan": "15.20", "status": "affected", "version": "15", "versionType": "rpm"}, {"lessThan": "14.25", "status": "affected", "version": "0", "versionType": "rpm"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-843", "type": "CWE", "description": "Access of Resource Using Incompatible Type ('Type Confusion')"}]}], "references": [{"url": "https://www.postgresql.org/support/security/CVE-2026-6460/"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}}], "configurations": [{"lang": "en", "value": "attacker has permission to create objects (temporary objects or non-temporary objects in at least one schema)"}], "credits": [{"lang": "en", "value": "The PostgreSQL project thanks Andrew Gierth, Alexander Lakhin, Francesco Verardi, Hcamael, Tomer Fichman, OpenAI Security Research Team, Mehmet Ince @mdisec, Bryan Green, Sumedh Pathak, Nicholas Carlini, Sergey Shinderuk, Yuxiao Guo, Nikhil Sontakke, Stephan Lipp, and Daniel Bakker for reporting this problem."}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-11-12T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-6460"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-13T05:02:34.185Z"}}]}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "PostgreSQL", "vendor": "n/a", "versions": [{"lessThan": "18.7", "status": "affected", "version": "18", "versionType": "rpm"}, {"lessThan": "17.12", "status": "affected", "version": "17", "versionType": "rpm"}, {"lessThan": "16.16", "status": "affected", "version": "16", "versionType": "rpm"}, {"lessThan": "15.20", "status": "affected", "version": "15", "versionType": "rpm"}, {"lessThan": "14.25", "status": "affected", "version": "0", "versionType": "rpm"}]}], "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Type confusion in PostgreSQL allows an object creator to execute arbitrary code as the operating system user running the database, via ALTER ... SET DATA TYPE primarily. Other DDL attack routes exist, such as \"ALTER TABLE ... ADD COLUMN; ROLLBACK; ALTER TABLE ... ADD COLUMN\". The system had inadequate tracking of typed values, and values were not self-identifying. Stale values could appear in data dictionary entries, PL/pgSQL variables, and many other parts of the system. PostgreSQL Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected."}], "id": "CVE-2026-6460", "lastModified": "2026-11-13T05:18:53.517", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-6460", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-11-12T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-11-12T15:17:51.597", "references": [{"source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "url": "https://www.postgresql.org/support/security/CVE-2026-6460/"}], "sourceIdentifier": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-843"}], "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "type": "Secondary"}]}

{"bugzilla": {"description": "postgresql: postgresql: Arbitrary code execution via type confusion in data definition commands", "id": "2572578", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2572578"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-843", "details": ["A flaw was found in PostgreSQL. Inadequate tracking of typed values allows an authenticated user with permissions to create or alter database objects to trigger a type confusion vulnerability by executing specific data definition commands, such as altering column data types. A threat actor can exploit this issue to execute arbitrary code on the host system with the permissions of the operating system user running the database service."], "mitigation": {"lang": "en:us", "value": "Limit exposure to the PostgreSQL service by restricting network connectivity to trusted administrative hosts and revoking object-creation privileges from untrusted database accounts.\n1. Restrict network reachability to trusted IP addresses using firewalld:\n```\nfirewall-cmd --permanent --remove-service=postgresql\nfirewall-cmd --permanent --zone=trusted --add-source=<trusted_ip_or_network>\nfirewall-cmd --reload\n```\n2. Revoke table creation privileges from untrusted database accounts within PostgreSQL:\n```\nREVOKE CREATE ON SCHEMA public FROM PUBLIC;\n```\nCaveats: Restricting network access prevents unapproved remote hosts from connecting to the database server. Revoking schema creation privileges may disrupt applications that require dynamic creation of temporary or permanent tables until explicit schema permissions are assigned.\nWarning: Reloading the firewall configuration using `firewall-cmd --reload` alters active packet filtering rules immediately and may disrupt existing network sessions."}, "name": "CVE-2026-6460", "package_state": [{"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "libpq", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "postgresql17", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "postgresql18", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-11-12T14:15:32Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-6460\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-6460\nhttps://www.postgresql.org/support/security/CVE-2026-6460/"], "statement": "This vulnerability is rated as Important because an authenticated user with object-creation privileges can execute arbitrary code under the operating system account running the PostgreSQL service. Although this allows full compromise of the database daemon host environment, exploitation requires prior authentication to the database and permissions to execute data definition statements, which precludes unauthenticated remote attacks. In standard Red Hat deployments, database instances should be configured so that untrusted users are not granted table creation or administrative schema alteration privileges.", "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[18,18.7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[17,17.12)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[16,16.16)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[15,15.20)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,14.25)"}}], "enrichment": {"confidence": 85.0, "confidence_source": "inferred", "scores": [{"score": 85.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "PostgreSQL", "source": "cna", "vendor": "n/a"}, "product": "postgresql", "vendor": "postgresql"}], "created": "2026-11-13T08:15:09.174525+00:00", "updated": "2026-11-13T08:15:09.174577+00:00", "vendors": ["postgresql", "postgresql$PRODUCT$postgresql"]}