{"id":"CVE-2026-3172","summary":"pgvector buffer overflow in parallel HNSW index build","details":"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.","modified":"2026-08-12T15:32:18.062308Z","published":"2026-02-25T20:59:10.051Z","related":["SUSE-SU-2026:1068-1","SUSE-SU-2026:21153-1","openSUSE-SU-2026:10409-1","openSUSE-SU-2026:20489-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3172.json","cna_assigner":"PostgreSQL","cwe_ids":["CWE-191","CWE-787"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3172.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3172"},{"type":"REPORT","url":"https://github.com/pgvector/pgvector/issues/959"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pgvector/pgvector","events":[{"introduced":"2627c5ff775ae6d7aef0c430121ccf857842d2f2"},{"fixed":"cab9da72c04353f143bb06b42ab70a403daac64a"},{"introduced":"3849f0fd3d6f7916de26d43e3a3c9f8e6615bc8f"},{"last_affected":"281d4fcf60e2f037fa09d62be2543bb4d7511f2b"}],"database_specific":{"extracted_events":[{"introduced":"0.8.0"},{"fixed":"0.8.2"},{"introduced":"0.7.0"},{"last_affected":"0.7.0"},{"introduced":"0.6.0"},{"last_affected":"0.6.0"}],"source":"AFFECTED_FIELD"}}],"versions":["0.6.0","0.7.0","v0.8.1","v0.8.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-3172.json","vanir_signatures_modified":"2026-08-12T15:32:18Z","vanir_signatures":[{"digest":{"line_hashes":["325184370726427892987140608035869586883","151522159397468950254370717503276765526","329316765945889667786866862518721915573","158760423621449773580808045031918353392"],"threshold":0.9},"id":"CVE-2026-3172-319708fc","signature_type":"Line","signature_version":"v1","source":"https://github.com/pgvector/pgvector/commit/cab9da72c04353f143bb06b42ab70a403daac64a","target":{"file":"src/vector.c"},"deprecated":false}]}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"}]}