Vulnerabilities > CVE-2023-39418 - Insufficient Granularity of Access Control vulnerability in multiple products

047910
CVSS 4.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
NONE
Integrity impact
LOW
Availability impact
NONE
network
low complexity
postgresql
redhat
debian
CWE-1220

Summary

A vulnerability was found in PostgreSQL with the use of the MERGE command, which fails to test new rows against row security policies defined for UPDATE and SELECT. If UPDATE and SELECT policies forbid some rows that INSERT policies do not forbid, a user could store such rows.