CVE-2026-116336

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-116336", "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "state": "PUBLISHED", "assignerShortName": "PostgreSQL", "dateReserved": "2026-10-26T04:01:48.586Z", "datePublished": "2026-11-12T14:15:20.347Z", "dateUpdated": "2026-11-13T05:02:51.006Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "shortName": "PostgreSQL", "dateUpdated": "2026-11-12T14:15:20.347Z"}, "title": "PostgreSQL REINDEX CONCURRENTLY does not block DROP INDEX during index functions", "x_postgresql": {"component": "core server"}, "descriptions": [{"lang": "en", "value": "Operation on a dropped index in PostgreSQL REINDEX CONCURRENTLY allows an object creator to execute arbitrary code as the operating system user running the database, via an index expression that issues DROP INDEX. 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')"}]}, {"descriptions": [{"lang": "en", "cweId": "CWE-672", "type": "CWE", "description": "Operation on a Resource after Expiration or Release"}]}], "references": [{"url": "https://www.postgresql.org/support/security/CVE-2026-116336/"}], "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 Florent Saudel 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-2026-116336"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-13T05:02:51.006Z"}}]}}

{}

{"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": "Operation on a dropped index in PostgreSQL REINDEX CONCURRENTLY allows an object creator to execute arbitrary code as the operating system user running the database, via an index expression that issues DROP INDEX. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected."}], "id": "CVE-2026-116336", "lastModified": "2026-11-13T05:18:07.473", "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-2026-116336", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-11-12T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-11-12T15:17:42.167", "references": [{"source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "url": "https://www.postgresql.org/support/security/CVE-2026-116336/"}], "sourceIdentifier": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-672"}, {"lang": "en", "value": "CWE-843"}], "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "type": "Secondary"}]}

{"bugzilla": {"description": "postgresql: postgresql: Arbitrary code execution via dropped index in REINDEX CONCURRENTLY", "id": "2572563", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2572563"}, "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-825", "details": ["A flaw was found in PostgreSQL. An authenticated database user with privileges to create objects can execute arbitrary code on the host system as the operating system user running the database service. This vulnerability occurs when the REINDEX CONCURRENTLY operation processes an index expression that executes a DROP INDEX command, resulting in an unsafe operation on a dropped index."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-116336", "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": "2026-11-12T14:15:20Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-116336\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-116336\nhttps://www.postgresql.org/support/security/CVE-2026-116336/"], "statement": "This vulnerability is rated as an Important severity because, while it requires an attacker to possess existing database credentials with object creation privileges, it allows privilege escalation to arbitrary code execution within the context of the underlying database daemon account. In standard Red Hat deployments hosting shared or multi-tenant database clusters, this flaw permits an authorized user to break through SQL isolation boundaries during concurrent reindexing workflows. Environments where database object creation is strictly confined to fully trusted administrative roles experience significantly lower practical exposure.", "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": 90.0, "confidence_source": "inferred", "scores": [{"score": 90.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "PostgreSQL", "source": "cna", "vendor": "n/a"}, "product": "postgresql", "vendor": "postgresql"}], "created": "2026-11-12T23:30:10.626599+00:00", "updated": "2026-11-13T05:45:15.823318+00:00", "vendors": ["postgresql", "postgresql$PRODUCT$postgresql"]}