Unrated severityNVD Advisory· Published Jul 28, 2026· Updated Jul 28, 2026
CVE-2026-11841
CVE-2026-11841
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.
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Affected products
1Patches
Vulnerability mechanics
References
6- www.sick.com/.well-known/csaf/white/2026/sca-2026-0010.pdfmitrevendor-advisory
- www.cisa.gov/resources-tools/resources/ics-recommended-practicesmitrex_ICS-CERT recommended practices on Industrial Security
- www.first.org/cvss/calculator/3.1mitrex_CVSS v3.1 Calculator
- www.sick.com/.well-known/csaf/white/2026/sca-2026-0010.jsonmitrex_The canonical URL.
- www.sick.com/media/docs/9/19/719/special_information_sick_operating_guidelines_cybersecurity_by_sick_en_im0106719.pdfmitrex_SICK Operating Guidelines
- www.sick.com/psirtmitrex_SICK PSIRT Security Advisories
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