Medium [CVE-2026-6470] Denial of Service via missing authorization in DDL commands
This medium-severity Red Hat Linux advisory covers CVE-2026-6470 affecting Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8.
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Summary
Denial of Service via missing authorization in DDL commands. Red Hat rates this moderate (CVSS 4.3).
Weakness: CWE-862.
Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 3 more.
Affected products named by the advisory: Self-service automation portal 2; Red Hat package: postgresql16; Red Hat package: postgresql18.
- < 18.5
- < 17.11
- < 16.15
- < 15.19
- < 14.24
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- To mitigate this vulnerability, administrators can proactively monitor for and manually remove unauthorized dependencies created on composite types by users lacking USAGE privileges. Restricting database access and object creation rights only to trusted users will limit the exposure.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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