CVE-2026-116315

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{}

{"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": "Heap-based buffer overflow in PostgreSQL tsvector_delete() allows a database user to execute arbitrary code as the operating system user running the database, via a tsvector whose lexeme data uses a nonstandard but valid ordering that requires additional alignment padding in the result. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected."}], "id": "CVE-2026-116315", "lastModified": "2026-11-13T05:18:04.573", "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-2026-116315", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-11-12T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-11-12T15:17:39.683", "references": [{"source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "url": "https://www.postgresql.org/support/security/CVE-2026-116315/"}], "sourceIdentifier": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-122"}], "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "type": "Secondary"}]}

{"bugzilla": {"description": "postgresql: postgresql: Arbitrary code execution via heap-based buffer overflow in tsvector_delete()", "id": "2572536", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2572536"}, "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-787", "details": ["A flaw was found in PostgreSQL. This vulnerability allows an authenticated database user to execute arbitrary code with the privileges of the operating system user running the database service. By supplying specifically structured text search vector (tsvector) data to the tsvector_delete() function, an attacker triggers a heap-based buffer overflow due to improper handling of alignment padding."], "mitigation": {"lang": "en:us", "value": "Restrict network access to PostgreSQL to trusted hosts and clients only, limiting exposure to untrusted database users.\n1. Restrict external network reachability to the PostgreSQL service using firewalld:\n# firewall-cmd --permanent --remove-service=postgresql\n# firewall-cmd --permanent --zone=trusted --add-source=<TRUSTED_IP_OR_SUBNET>\n# firewall-cmd --reload\n2. Configure /var/lib/pgsql/data/pg_hba.conf to only permit connections from authorized client addresses and trusted database roles, then reload the configuration:\n# systemctl reload postgresql\nWarning: Reloading firewall rules or the PostgreSQL service may temporarily interrupt active network connections. These operational controls reduce exposure by limiting network access to trusted clients, but they do not eliminate risk from authenticated users permitted to execute SQL queries."}, "name": "CVE-2026-116315", "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": "2026-11-12T14:15:08Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-116315\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-116315\nhttps://www.postgresql.org/support/security/CVE-2026-116315/"], "statement": "Red Hat has rated this vulnerability as having an Important severity because an authenticated user can trigger a heap buffer overflow to execute arbitrary code with the permissions of the postgres service account, potentially compromising the host. While the impact on system integrity, confidentiality, and availability is high, exploitation requires valid database credentials and access to execute SQL functions, which prevents unauthenticated remote execution. In standard Red Hat Enterprise Linux deployments, exposure is further constrained by default SELinux policies that confine the PostgreSQL daemon and restrict access to broader system resources.", "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": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "PostgreSQL", "source": "cna", "vendor": "n/a"}, "product": "postgresql", "vendor": "postgresql"}], "created": "2026-11-13T00:30:08.180955+00:00", "updated": "2026-11-13T06:15:16.183089+00:00", "vendors": ["postgresql", "postgresql$PRODUCT$postgresql"]}