Vulnerability · Published Aug 25, 2026 · Assigned by GitHub_M
CVE-2026-55419Reachy Mini: Unrestricted Upload of File with Dangerous Type
Medium 5.3
In plain English
A medium-severity unrestricted file upload in reachy_mini from pollen-robotics. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | reachy-mini | 1.8.2 | GHSA-m2pc-3q4q-w6jr |
| PyPI | reachy-mini | 1.8.2 | PYSEC-2026-3916 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| pollen-robotics | reachy_mini | < 1.8.2 |
Weakness: CWE-434 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
References
- https://github.com/pollen-robotics/reachy_mini/security/advisories/GHSA-m2pc-3q4q-w6jr x_refsource_CONFIRM
- https://github.com/pollen-robotics/reachy_mini/pull/1209 x_refsource_MISC
- https://github.com/pollen-robotics/reachy_mini/commit/984c7723b3ec5da63f4e0a2bcf9f120ceb563e04 x_refsource_MISC
- https://github.com/pollen-robotics/reachy_mini/releases/tag/v1.8.2 x_refsource_MISC