CVE-2017-15099: Debian Linux

Medium severity, CVSS 6.5. EPSS: 6.3% chance of exploitation in the next 30 days.

INSERT ... ON CONFLICT DO UPDATE commands in PostgreSQL 10.x before 10.1, 9.6.x before 9.6.6, and 9.5.x before 9.5.10 disclose table contents that the invoker lacks privilege to read. These exploits affect only tables where the attacker lacks full read access but has both INSERT and UPDATE privileges. Exploits bypass row level security policies and lack of SELECT privilege.

Affected products

• Debian Debian Linux: version 9.0 only
• PostgreSQL PostgreSQL: version 9.5 only; version 9.5.1 only; version 9.5.2 only; version 9.5.3 only; version 9.5.4 only; version 9.5.5 only; …

Published 2017-11-22. Last modified 2026-06-17.