CVE-2026-3172

Published: Feb 25, 2026

Modified: Feb 26, 2026

PUBLISHED

CVSS v3.1

8.1

HIGH

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.

Vendor	Product	Versions
n/a	pgvector	affected `0.8.0 - < 0.8.2` affected `0.7.0` affected `0.6.0`

Weaknesses (CWE)

CWE-191

CWE-787

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

References

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

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Start Training

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.

Scan Now

CVE-2026-3172

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References