---
id: CVE-2026-78155
title: >-
  privilege escalation in StackGres operator allows a low-privilege tenant who
  owns a database to gain administrator privileges
summary: >-
  privilege escalation in StackGres operator allows a low-privilege tenant who
  owns a database to gain administrator privileges
severity: critical
cvss: 9.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-426
vendor: ongres
product: stackgres
affected:
  - stackgres < 1.19.0
patched:
  - stackgres 1.19.0
published: '2026-08-23'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T13:13:14.767'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-78155'
references:
  - url: 'https://gitlab.com/ongresinc/stackgres/-/work_items/3177'
    label: cve@gitlab.com
tags:
  - nvd
epss: 0.00518
epssPercentile: 0.41574
ingestedAt: '2026-09-16T13:56:12.597Z'
---

## Overview

privilege escalation in StackGres operator allows a low-privilege tenant who owns a database to gain administrator privileges

## Affected

- `stackgres < 1.19.0`

## Remediation

Upgrade past the affected range:

- `stackgres 1.19.0`