CVE-2026-6470: PostgreSQL fails to check type USAGE privilege
CSIRTS triage
- What
- PostgreSQL fails to check type USAGE privileges, allowing unauthorized access to custom types.
- Who is affected
- All PostgreSQL deployments with custom types and role-based access controls.
- Urgency
- Medium priority; CVSS 4.3 indicates privilege escalation but limited scope.
- Action
- Update PostgreSQL to the patched version addressing CVE-2026-6470.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-6470
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-64700.33% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 26% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-6470 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- high[NEW] [high] PostgreSQL: Multiple vulnerabilitiescert-bund
- unknownUSN-8653-1: PostgreSQL vulnerabilitiesubuntu
- unknownMultiple vulnerabilities in PostgreSQL (August 14, 2026)cert-fr-avis
- mediumCVE-2026-6470: Missing authorization in PostgreSQL DDL commands allows an object creator to achieve denial of …nvd
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