{"id":"UBUNTU-CVE-2026-3172","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":"2026-05-20T16:25:08.544229589Z","published":"2026-02-25T21:16:00Z","upstream":["CVE-2026-3172"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-3172"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-3172"},{"type":"REPORT","url":"https://github.com/pgvector/pgvector/issues/959"}],"affected":[{"package":{"name":"pgvector","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/pgvector?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.4-1","0.5.1-1","0.6.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"postgresql-16-pgvector","binary_version":"0.6.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3172.json"}},{"package":{"name":"pgvector","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/pgvector?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.8.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"postgresql-17-pgvector","binary_version":"0.8.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3172.json"}},{"package":{"name":"pgvector","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/pgvector?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.8.0-1","0.8.1-2"],"ecosystem_specific":{"binaries":[{"binary_version":"0.8.1-2","binary_name":"postgresql-18-pgvector"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3172.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}