Vulnerability DatabaseCVE-2026-3172
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CVE-2026-3172
February 25, 2026
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.
Affected Packages
https://github.com/pgvector/pgvector.git (GITHUB):
Affected version(s) >=v0.6.0 <v0.8.2
Fix Suggestion:
Update to version v0.8.2
Related Resources (1)
https://github.com/pgvector/pgvector/issues/959
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CVSS v4
Base Score:
7.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Integer Underflow (Wrap or Wraparound)
CWE-191
Out-of-bounds Write
CWE-787
EPSS
Base Score:
0.05