Vulnerability · Published Feb 12, 2026 · Assigned by GitHub_M
CVE-2026-25933Arduino App Lab has Improper Data Validation in Internal Terminal Interface
Medium 6.9
In plain English
A medium-severity OS command injection in arduino-app-lab from arduino. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Official description
Arduino App Lab is a cross-platform IDE for developing Arduino Apps. Prior to 0.4.0, a vulnerability was identified in the Terminal component of the arduino-app-lab application. The issue stems from insufficient sanitization and validation of input data received from connected hardware devices, specifically in the _info.Serial and _info.Address metadata fields. The problem occurs during device information handling. When a board is connected, the application collects identifying attributes to establish a terminal session. Because strict validation is not enforced for the Serial and Address parameters, an attacker with control over the connected hardware can supply specially crafted strings containing shell metacharacters. The exploitation requires direct physical access to a previously tampered board. When the host system processes these fields, any injected payload is executed with the privileges of the user running arduino-app-lab. This vulnerability is fixed in 0.4.0.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| arduino | arduino-app-lab | < 0.4.0 |
Weakness: CWE-78 · Vector: CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
References
- https://github.com/arduino/arduino-app-lab/security/advisories/GHSA-3652-939f-f7g4 x_refsource_CONFIRM
- https://github.com/arduino/arduino-app-lab/releases/tag/al-0.4.0 x_refsource_MISC