CVE-2026-6469: PostgreSQL ALTER TABLE ALTER TYPE resets extended statistics ownership

lowCVSS 3.8CVE-2026-6469

CSIRTS triage

vendor: PostgreSQL product: PostgreSQL Privilege escalation

What: ALTER TABLE ALTER TYPE resets extended statistics ownership, potentially allowing privilege escalation.
Who is affected: PostgreSQL deployments where extended statistics are in use are affected.
Urgency: Low severity (CVSS 3.8) with no current public exploitation; standard patching cycle is acceptable.
Action: Apply PostgreSQL security update when available.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: low — CVSS 3.8
Published: 2026-08-11
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-6469

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-2026-64690.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 25% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-6469	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
lowCVE-2026-6469: Incorrect ownership assignment in PostgreSQL ALTER TABLE ALTER TYPE command reassigns ownership…nvd

Recent advisories for PostgreSQL ALTER TABLE

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

lowCVE-2026-6469: Incorrect ownership assignment in PostgreSQL ALTER TABLE ALTER TYPE command reassigns ownership…nvd · 2026-08-13