{"id":"CVE-2026-103484","state":"PUBLISHED","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.","publishedAt":"2026-10-01T19:49:03.670Z","updatedAt":"2026-10-01T19:58:48.937Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"PostgreSQL"},"assigner":"PostgreSQL","products":["n/a pgvector"],"affected":[{"vendor":"n/a","product":"pgvector","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"0.8.7","versionType":"semver"}]}],"references":["https://github.com/pgvector/pgvector/issues/1036","https://github.com/pgvector/pgvector/commit/ee00d39ab30c2a7cf9510abf9288c624d91db156"],"weaknesses":["CWE-787","CWE-1284"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/103xxx/CVE-2026-103484.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-103484","state":"PUBLISHED","datePublished":"2026-10-01T19:49:03.670Z","dateUpdated":"2026-10-01T19:58:48.937Z","assignerShortName":"PostgreSQL","assignerOrgId":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","dateReserved":"2026-09-30T16:24:57.108Z"},"containers":{"cna":{"title":"pgvector buffer overflow in IVFFlat index build","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."}],"affected":[{"vendor":"n/a","product":"pgvector","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"0.8.7","versionType":"semver"}]}],"references":[{"url":"https://github.com/pgvector/pgvector/issues/1036"},{"url":"https://github.com/pgvector/pgvector/commit/ee00d39ab30c2a7cf9510abf9288c624d91db156"}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-787","lang":"en","type":"CWE","description":"Out-of-bounds Write"}]},{"descriptions":[{"cweId":"CWE-1284","lang":"en","type":"CWE","description":"Improper Validation of Specified Quantity in Input"}]}],"providerMetadata":{"shortName":"PostgreSQL","orgId":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","dateUpdated":"2026-10-01T19:49:03.670Z"},"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."}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-01T19:58:32.132643Z","id":"CVE-2026-103484","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-01T19:58:48.937Z"}}]}}}