Arbitrary file upload in Pollen-Robotics Reachy Mini
CVE-2026-55419
Reachy Mini is an SDK for controlling Reachy Mini robots. Prior to 1.8.2, the Reachy Mini daemon exposes the /api/media/sounds/upload endpoint implemented by the upload_sound method in src/reachy_mini/daemon/app/routers/media.py without authentication, file-extension checks, content validation, or size validation. The daemon binds to 0.0.0.0 by default and uses permissive CORS allow_origins=["*"], allowing an unauthenticated network attacker to upload arbitrary file types that are written to /tmp/reachy_mini_sounds/<original_filename>. Malicious files can compromise stored-data integrity and can serve as a foothold when combined with other vulnerabilities. This issue is fixed in version 1.8.2.
Vulnerability class: Unrestricted File Upload
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Pollen-robotics Reachy_mini — versions < 1.8.2
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-55419?
- CVE-2026-55419 is a medium-severity vulnerability in Pollen-Robotics Reachy Mini, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 5.3/10. Published 2026-08-25.
- How severe is CVE-2026-55419?
- Medium severity. CVSS v3 base score is 5.3 out of 10.