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{"bugzilla": {"description": "pgvector: pgvector: Information disclosure or denial of service via buffer overflow in parallel HNSW index build", "id": "2443037", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2443037"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H", "status": "draft"}, "cwe": "CWE-190->CWE-120", "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."], "name": "CVE-2026-3172", "package_state": [{"cpe": "cpe:/a:redhat:openshift_lightspeed", "fix_state": "Fix deferred", "package_name": "openshift-lightspeed/lightspeed-ocp-rag-rhel9", "product_name": "OpenShift Lightspeed"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Under investigation", "package_name": "postgresql16-pgvector", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Under investigation", "package_name": "postgresql18-pgvector", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Under investigation", "package_name": "postgresql:16/pgvector", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:trusted_profile_analyzer:2", "fix_state": "Fix deferred", "package_name": "rhtpa/rhtpa-trustification-service-rhel9", "product_name": "Red Hat Trusted Profile Analyzer"}], "public_date": "2026-02-25T20:59:10Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-3172\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-3172\nhttps://github.com/pgvector/pgvector/issues/959"], "statement": "A buffer overflow during parallel HNSW index builds can be exploited by a database user, potentially leading to information disclosure from other database relations or a denial of service by crashing the database server, although the high impact on availability and confidentiality Red Hat Product Security team has rated this as having a moderate severity. This happens because, besides the low privileges required, to successfully exploit this flaw the attack needs to win a race condition among several worker threads which may be a task considered of a high complexity.", "threat_severity": "Moderate"}