CVE-2026-2331
Description
An attacker may perform unauthenticated read and write operations on sensitive filesystem areas via the AppEngine Fileaccess over HTTP due to improper access restrictions. A critical filesystem directory was unintentionally exposed through the HTTP-based file access feature, allowing access without authentication. This includes device parameter files, enabling an attacker to read and modify application settings, including customer-defined passwords. Additionally, exposure of the custom application directory may allow execution of arbitrary Lua code within the sandboxed AppEngine environment.
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| SICK AG SICK Lector85x | 2.6.0 ≤ v ≤ 2.7.0 | — |
| SICK AG SICK Lector83x | 2.6.0 ≤ v ≤ 2.7.0 | — |
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