CVE-2026-3172

8.1 HIGH

Published: February 25, 2026 Modified: February 27, 2026

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

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

Source: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007

1 reference(s) from NVD

Quick Stats

CVSS v3 Score

8.1 / 10.0

EPSS (Exploit Probability)

0.0%

14th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-191 CWE-787

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