CVE-2026-3172

HIGH

8.1

Description

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.

CVE Details

CVSS v3.1 Score8.1

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published2/25/2026

Last Modified2/27/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-191CWE-787

References

https://github.com/pgvector/pgvector/issues/959(f86ef6dc-4d3a-42ad-8f28-e6d5547a5007)

IOC Correlations

No correlations recorded

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