# CVE-2026-34023: Broken WebSocket authorization in Wertheim SafeController Software allows cross-branch access to restricted functions

> Authenticated low-privileged users can access restricted functions in other branches by manipulating WebSocket messages, enabling unauthorized box activation.

- **Severity:** High 7.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Jun 2026
- **Updated:** 15 Jun 2026
- **Also known as:** GHSA-v4rm-3378-9vff

## What is CVE-2026-34023?

CVE-2026-34023 is a high-severity missing authorization vulnerability in Wertheim SafeController Software for VAULT ROOMS (Safe Deposit Locker System), published on 15 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Wertheim SafeController Software, AssemblyVersion 6.15.8328.28014, contains an incorrect authorization vulnerability in the WebSocket communication used by the SafeController WebMessageBroker. An authenticated attacker with valid low-privileged branch user credentials can manipulate WebSocket messages by specifying controller identifiers belonging to other branches. This allows the attacker to access restricted functions and resources in other branches, including activating boxes outside of the user's authorized branch.

Weakness: CWE-863 (Incorrect Authorization)

## Which versions are affected by CVE-2026-34023?


## How do I fix CVE-2026-34023?

No fix has been published for CVE-2026-34023 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-34023 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34023 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-34023 and fix it if it is affected.

What it is: CVE-2026-34023 is a high-severity missing authorization vulnerability in Wertheim SafeController Software for VAULT ROOMS (Safe Deposit Locker System), published on 15 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34023 exists.

Affected product: Wertheim SafeController Software for VAULT ROOMS (Safe Deposit Locker System). 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-2026-34023/ (Markdown: https://insights.sbomify.com/CVE-2026-34023/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-34023
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-34023
- OSV: https://osv.dev/vulnerability/CVE-2026-34023

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-34023/
Summaries are generated and may contain mistakes; the official description above is the record.