TI-2026-26353 Aliases CVE-2026-34027 GHSA-gr5m-9xq3-vhc7

Upload restriction bypass in Wertheim SafeController Software allows authenticated users to upload arbitrary files

LOW 30CWE-434Published 2026-06-15 · Updated 2026-06-15

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: None · Low · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-434.

Summary

The Wertheim SafeController Software, AssemblyVersion 6.15.8328.28014, contains insufficient server-side file type validation in the /safe/contract/uploadcustomdocuments endpoint. The application validates uploaded files based on the user-controlled HTTP Content-Type value and accepts the upload if this value contains an allowed string such as pdf, jpeg, tiff, or png. An authenticated attacker with any role or permission level can spoof the Content-Type value and upload arbitrary file content.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00305 23rd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
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-2026-34027
2026-10-03 Alias added: GHSA-gr5m-9xq3-vhc7

References

Advisory 1

https://r.sec-consult.com/wertheim

Other 1

https://wertheim-safes.com/safe-deposit-box-management/

TI-2026-26347 Lack of cryptographic protection in Wertheim SafeController 5400 enables RS-485 message sniffing and replay CVSS 4.0HIGH 8.6
TI-2026-26349 Broken WebSocket authorization in Wertheim SafeController Software allows cross-branch access to restricted functions CVSS 4.0HIGH 7.1
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

See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences