{"api_version":"1","generated_at":"2026-10-01T21:51:50+00:00","cve":"CVE-2026-103484","urls":{"html":"https://cve.report/CVE-2026-103484","api":"https://cve.report/api/cve/CVE-2026-103484.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-103484","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-103484"},"summary":{"title":"pgvector buffer overflow in IVFFlat index build","description":"IVFFlat index build in pgvector before 0.8.7 allows a database user to write data out-of-bounds, which can lead to arbitrary code execution.","state":"PUBLISHED","assigner":"PostgreSQL","published_at":"2026-10-01 20:17:23","updated_at":"2026-10-01 20:17:23"},"problem_types":["CWE-787","CWE-1284","CWE-787 Out-of-bounds Write","CWE-1284 Improper Validation of Specified Quantity in Input"],"metrics":[{"version":"3.1","source":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","type":"Secondary","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"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","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://github.com/pgvector/pgvector/commit/ee00d39ab30c2a7cf9510abf9288c624d91db156","name":"https://github.com/pgvector/pgvector/commit/ee00d39ab30c2a7cf9510abf9288c624d91db156","refsource":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/pgvector/pgvector/issues/1036","name":"https://github.com/pgvector/pgvector/issues/1036","refsource":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-103484","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-103484","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"pgvector","version":"affected 0.8.7 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Thanks to Emanuele Barbeno, Cyrill Bannwart, Urs Mueller, and Lukasz D of Compass Security for reporting this.","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-103484","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-10-01T19:58:32.132643Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-10-01T19:58:48.937Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"pgvector","vendor":"n/a","versions":[{"lessThan":"0.8.7","status":"affected","version":"0","versionType":"semver"}]}],"configurations":[{"lang":"en","value":"attacker has permission to create an IVFFlat index"}],"credits":[{"lang":"en","value":"Thanks to Emanuele Barbeno, Cyrill Bannwart, Urs Mueller, and Lukasz D of Compass Security for reporting this."}],"descriptions":[{"lang":"en","value":"IVFFlat index build in pgvector before 0.8.7 allows a database user to write data out-of-bounds, which can lead to arbitrary code execution."}],"metrics":[{"cvssV3_1":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-787","description":"Out-of-bounds Write","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-1284","description":"Improper Validation of Specified Quantity in Input","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-01T19:49:03.670Z","orgId":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","shortName":"PostgreSQL"},"references":[{"url":"https://github.com/pgvector/pgvector/issues/1036"},{"url":"https://github.com/pgvector/pgvector/commit/ee00d39ab30c2a7cf9510abf9288c624d91db156"}],"title":"pgvector buffer overflow in IVFFlat index build"}},"cveMetadata":{"assignerOrgId":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","assignerShortName":"PostgreSQL","cveId":"CVE-2026-103484","datePublished":"2026-10-01T19:49:03.670Z","dateReserved":"2026-09-30T16:24:57.108Z","dateUpdated":"2026-10-01T19:58:48.937Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-01 20:17:23","lastModifiedDate":"2026-10-01 20:17:23","problem_types":["CWE-787","CWE-1284","CWE-787 Out-of-bounds Write","CWE-1284 Improper Validation of Specified Quantity in Input"],"metrics":{"cvssMetricV31":[{"source":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","type":"Secondary","cvssData":{"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","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-01T19:58:32.132643Z","id":"CVE-2026-103484","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"103484","Ordinal":"1","Title":"pgvector buffer overflow in IVFFlat index build","CVE":"CVE-2026-103484","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"103484","Ordinal":"1","NoteData":"IVFFlat index build in pgvector before 0.8.7 allows a database user to write data out-of-bounds, which can lead to arbitrary code execution.","Type":"Description","Title":"pgvector buffer overflow in IVFFlat index build"}]}}}