Broken WebSocket authorization in Wertheim SafeController Software allows cross-branch access to restricted functions
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · High · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Wertheim GmbH | Wertheim SafeController Software for VAULT ROOMS (Safe Deposit Locker System) | Wertheim SafeController Software, AssemblyVersion 6.15.8328.28014 | — | No fix listed | CNA |
- Wertheim SafeController Software for VAULT ROOMS (Safe Deposit Locker System) VendorWertheim GmbH Affected Wertheim SafeController Software, AssemblyVersion 6.15.8328.28014 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-34023
- 2026-10-03 Alias added: GHSA-v4rm-3378-9vff
References
More Wertheim GmbH vulnerabilities
- TI-2026-26347 Lack of cryptographic protection in Wertheim SafeController 5400 enables RS-485 message sniffing and replay CVSS 4.0HIGH 8.6
- TI-2026-26348 Weak custom cryptography and hard-coded keys in Wertheim SafeController 65000 allow traffic decryption CVSS 4.0HIGH 7.1
- TI-2026-26350 Missing authorization in Wertheim SafeController Software for VAULT ROOMS CVSS 4.0HIGH 8.6
- TI-2026-26354 Unauthenticated direct access to web data in Wertheim SafeController Software exposes files CVSS 4.0MEDIUM 6.9
- TI-2026-26352 Path traversal in Wertheim SafeController Software allows authenticated users to download arbitrary files CVSS 4.0HIGH 7.1
- TI-2026-26356 Improper branch-code validation in Wertheim SafeController Software allows file path manipulation CVSS 4.0MEDIUM 6.9
Sources
- CVE-2026-34023 · CVE Program
- CVE-2026-34023 · NVD
- FIRST EPSS
- GHSA-v4rm-3378-9vff · GitHub Advisory Database · CC BY 4.0
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