{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3172","assignerOrgId":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","state":"PUBLISHED","assignerShortName":"PostgreSQL","dateReserved":"2026-02-24T22:42:24.733Z","datePublished":"2026-02-25T20:59:10.051Z","dateUpdated":"2026-02-26T15:04:08.481Z"},"containers":{"cna":{"providerMetadata":{"orgId":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","shortName":"PostgreSQL","dateUpdated":"2026-02-25T20:59:10.051Z"},"title":"pgvector buffer overflow in parallel HNSW index build","descriptions":[{"lang":"en","value":"Buffer overflow in parallel HNSW index build in pgvector 0.6.0 through 0.8.1 allows a database user to leak sensitive data from other relations or crash the database server."}],"affected":[{"defaultStatus":"unaffected","product":"pgvector","vendor":"n/a","versions":[{"lessThan":"0.8.2","status":"affected","version":"0.8.0","versionType":"semver"},{"status":"affected","version":"0.7.0","versionType":"semver"},{"status":"affected","version":"0.6.0","versionType":"semver"}]}],"problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-191","type":"CWE","description":"Integer Underflow or Wraparound"}]},{"descriptions":[{"lang":"en","cweId":"CWE-787","type":"CWE","description":"Out-of-bounds Write"}]}],"references":[{"url":"https://github.com/pgvector/pgvector/issues/959"}],"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:N/A:H","baseScore":8.1,"baseSeverity":"HIGH"}}],"configurations":[{"lang":"en","value":"attacker has permission to create or reindex an HNSW index with parallel workers"}],"credits":[{"lang":"en","value":"Thanks to chungkn from OneMount Group for reporting this."}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-26T15:03:28.719764Z","id":"CVE-2026-3172","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-02-26T15:04:08.481Z"}}]}}