CVE-2026-6638: PostgreSQL REFRESH PUBLICATION allows SQL injection via table name

Overview

Severity

Low (CVSS 3.7)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-May

Released

2026-05-16

EPSS Score

0.02% (percentile: 6.6%)

Affected Products (1)

Other

• 21340-17084

Revision History

• 2026-05-16: Information published.