CVE-2026-3172

8.1 highEPSS 0.4%

High (8.1). EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

8.1 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-31)
CWEs: CWE-191, CWE-787
Published: 2026-02-25
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://github.com/pgvector/pgvector/issues/959

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