{"id":"CVE-2026-2331","aliases":["EUVD-2026-10025","GHSA-cvvv-49vh-384q"],"status":"published","title":"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.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00977,"percentile":0.62386,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-552"],"published":"2026-03-06T07:56:35Z","modified":"2026-06-17T10:30:48Z","products":[{"vendor":"sick ag","product":"sick lector83x"},{"vendor":"sick ag","product":"sick lector85x"}],"references":[{"url":"https://www.sick.com/psirt","tags":["x_SICK PSIRT Security Advisories"]},{"url":"https://www.sick.com/media/docs/9/19/719/special_information_sick_operating_guidelines_cybersecurity_by_sick_en_im0106719.pdf","tags":["x_SICK Operating Guidelines"]},{"url":"https://www.cisa.gov/resources-tools/resources/ics-recommended-practices","tags":["x_ICS-CERT recommended practices on Industrial Security"]},{"url":"https://www.first.org/cvss/calculator/3.1","tags":["x_CVSS v3.1 Calculator"]},{"url":"https://www.sick.com/.well-known/csaf/white/2026/sca-2026-0006.json","tags":["x_The canonical URL."]},{"url":"https://www.sick.com/.well-known/csaf/white/2026/sca-2026-0006.pdf","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-2331"},{"url":"https://github.com/advisories/GHSA-cvvv-49vh-384q"}],"sources":{"cve":[{"id":"CVE-2026-2331","title":"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.","status":"published","published":"2026-03-06T07:56:35.445Z","modified":"2026-03-09T21:04:31.505Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-552"],"updated_at":"2026-11-02T13:48:35.749498Z"}],"euvd":[{"id":"EUVD-2026-10025","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.","status":"published","published":"2026-03-06T07:56:35Z","modified":"2026-03-09T21:04:31Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T19:48:06.014236Z"}],"ghsa":[{"id":"GHSA-cvvv-49vh-384q","title":"An attacker may perform unauthenticated read and write operations on sensitive filesystem areas...","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.","status":"published","published":"2026-03-06T09:31:33Z","modified":"2026-03-06T09:31:41Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-552"],"updated_at":"2026-11-02T15:06:29.221258Z"}],"nvd":[{"id":"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.","status":"published","published":"2026-03-06T08:16:27.45Z","modified":"2026-06-17T10:30:48.04Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-552"],"updated_at":"2026-11-02T14:12:08.279852Z"}]}}