# CVE-2026-0869: Application User custom defined accounts are not properly password protected in Brocade ASCG 3.4.0

> An attacker can bypass authentication to perform unauthorized operations or disable critical services on Brocade ASCG devices.

- **Severity:** High 8.3 (`CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Mar 2026
- **Updated:** 4 Mar 2026
- **Also known as:** GHSA-hg48-698q-829j

## What is CVE-2026-0869?

CVE-2026-0869 is a high-severity authentication bypass vulnerability in Brocade ASCG, published on 3 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Authentication bypass in Brocade ASCG 3.4.0 Could allow an unauthorized user to perform ASCG operations related to Brocade Support Link(BSL) and streaming configuration. and could even disable the ASCG application or disable use of BSL data collection on Brocade switches within the fabric.

Weakness: CWE-305 (Authentication Bypass by Primary Weakness)

## Which versions are affected by CVE-2026-0869?

It affects 1 product.


Products: Broadcom Brocade Active Support Connectivity Gateway.

## How do I fix CVE-2026-0869?

No fix has been published for CVE-2026-0869 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-0869 being exploited?

There is no known exploitation of CVE-2026-0869 in the wild and no public exploit code.

## Other vulnerabilities in Brocade ASCG

- [CVE-2026-85421](https://insights.sbomify.com/CVE-2026-85421/): Missing authorization in Brocade Active Support Connectivity Gateway (high 8.7)
- [CVE-2026-85489](https://insights.sbomify.com/CVE-2026-85489/): Missing authorization in Brocade Active Support Connectivity Gateway (high 8.7)
- [CVE-2026-85423](https://insights.sbomify.com/CVE-2026-85423/): A vulnerability has been identified in the data collection service of Brocade ASCG versions before 3.5.0. (high 8.6)
- [CVE-2026-85486](https://insights.sbomify.com/CVE-2026-85486/): Code injection in Brocade Active Support Connectivity Gateway (high 8.6)
- [CVE-2026-85487](https://insights.sbomify.com/CVE-2026-85487/): Path traversal in Brocade Active Support Connectivity Gateway (high 8.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-0869 and fix it if it is affected.

What it is: CVE-2026-0869 is a high-severity authentication bypass vulnerability in Brocade ASCG, published on 3 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-0869 in the wild and no public exploit code.

Affected product: Brocade ASCG. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-0869/ (Markdown: https://insights.sbomify.com/CVE-2026-0869/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-0869
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-0869
- OSV: https://osv.dev/vulnerability/CVE-2026-0869

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-0869/
Summaries are generated and may contain mistakes; the official description above is the record.