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9.8

PostgreSQL: Users can access restricted data through optimizer statistics

CLEANSTART-2026-WY43835
Summary

A security issue in PostgreSQL's optimizer statistics allows users to access data they shouldn't be able to see within certain views. This affects users with limited access to the database. Update PostgreSQL to the latest version to fix this issue.

What to do
  • Update postgresql to version 17.6-r0.
Affected software
VendorProductAffected versionsFix available
– postgresql <= 17.6-r0 17.6-r0
Original title
PostgreSQL optimizer statistics allow a user to read sampled data within a view that the user cannot access
Original description
Multiple security vulnerabilities affect the postgresql package. PostgreSQL optimizer statistics allow a user to read sampled data within a view that the user cannot access. See references for individual vulnerability details.
osv CVSS3.1 9.8
Published: 4 Mar 2026 · Updated: 13 Mar 2026 · First seen: 9 Mar 2026