---
id: "CVE-2026-86356"
page: "https://infrastack.ai/live/CVE-2026-86356"
kind: "vulnerability"
aliases: ["CVE-2026-86356"]
title: "Dell PowerStore: authorization bypass lets a user gain administrator rights"
severity: "high"
cvss: 8.8
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: [{"name": "PowerStoreT OS", "fixed": ["5.1.0.0-2798105"], "affected": ">= 5.1.0, < 5.1.0.0-2798105", "ecosystem": "vendor"}]
ecosystems: []
tags: ["dell-powerstore", "infrastructure", "on-prem", "self-hosted", "storage"]
not_affected_if: []
published_at: "2026-11-13T13:18:30+00:00"
first_seen_at: "2026-11-13T13:46:52+00:00"
updated_at: "2026-11-13T13:49:26+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86356", "first_seen_at": "2026-11-13T13:46:52+00:00"}, {"source": "analyst", "url": "https://www.dell.com/support/kbdoc/en-us/000527640/dsa-2026-479-dell-powerstore-t-security-update-for-multiple-vulnerabilities", "first_seen_at": "2026-11-13T13:49:26+00:00", "cites": ["https://www.dell.com/support/kbdoc/en-us/000527640/dsa-2026-479-dell-powerstore-t-security-update-for-multiple-vulnerabilities"]}]
exploit_sources: []
---

# Dell PowerStore: authorization bypass lets a user gain administrator rights

Link for people: https://infrastack.ai/live/CVE-2026-86356 (this .md is for agents)

Dell PowerStore storage appliances contain an authorization-bypass flaw that can let a user elevate their privileges to administrator. An attacker who gets any valid access to the system could take full administrative control of the storage array.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:PowerStoreT OS affected >= 5.1.0, < 5.1.0.0-2798105 fixed 5.1.0.0-2798105

## How to check

- In PowerStore Manager (or the appliance software info), read the PowerStoreT OS version.
- Affected: any PowerStoreT OS 5.1.x earlier than 5.1.0.0-2798105. Fixed: 5.1.0.0-2798105 or later.
- Models listed by Dell: 500T, 1000T, 1200T, 3000T, 3200Q, 3200T, 5000T, 5200Q, 5200T, 7000T, 9000T, 9200T, 1500, 5500, 9500.
- Dell's table names only 5.1.x; it does not state whether older release lines (e.g. 4.x) are affected, so confirm with Dell support if you run those.

## Fix

Upgrade PowerStoreT OS to 5.1.0.0-2798105 or later (single upgrade covering all DSA-2026-479 CVEs); download from each model's Dell support page.

## Timeline

- 2026-11-13T13:46:52+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-86356
- 2026-11-13T13:49:26+00:00 analyst https://www.dell.com/support/kbdoc/en-us/000527640/dsa-2026-479-dell-powerstore-t-security-update-for-multiple-vulnerabilities — Dell DSA-2026-479 (read on dell.com) lists CVE-2026-86356 as authorization bypass to administrator, CVSS 8.8 AV:N/PR:L. Fix 5.1.0.0-2798105. No exploitation reported by Dell; no PoC found. Dell lists no workaround. X not checked.

## Documents

- [advisory] DSA-2026-479: Dell PowerStore T Security Update for Multiple Vulnerabilities https://www.dell.com/support/kbdoc/en-us/000527640/dsa-2026-479-dell-powerstore-t-security-update-for-multiple-vulnerabilities

## From the sources

Dell PowerStore contains an authorization-bypass vulnerability that could lead to elevation of privilege to administrator.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_