CVE-2026-18022

{"id": "CVE-2026-18022", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-18022", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-07-30T00:00:00+00:00"}}], "cvssMetricV31": [{"type": "Secondary", "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "affected": [{"source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "affectedData": [{"vendor": "n/a", "product": "pgvector", "versions": [{"status": "affected", "version": "0", "lessThan": "0.8.6", "versionType": "semver"}], "defaultStatus": "unaffected"}]}], "published": "2026-07-29T20:17:02.593", "references": [{"url": "https://github.com/pgvector/pgvector/commit/636a92a3395d2e036ffd40d07aeb400a708ae104", "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007"}, {"url": "https://github.com/pgvector/pgvector/issues/1006", "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "description": [{"lang": "en", "value": "CWE-190"}, {"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "Integer wraparound in IVFFlat index build in pgvector before 0.8.6 allows a database user to write data out-of-bounds, which could lead to arbitrary code execution. Only 32-bit systems are affected."}], "lastModified": "2026-07-31T04:17:19.543", "sourceIdentifier": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007"}