CVE-2026-55419

Summary

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 Software

Weaknesses

• CWE-434: CWE-434: Unrestricted Upload of File with Dangerous Type

References

• https://github.com/pollen-robotics/reachy_mini/security/advisories/GHSA-m2pc-3q4q-w6jr
• https://github.com/pollen-robotics/reachy_mini/pull/1209
• https://github.com/pollen-robotics/reachy_mini/commit/984c7723b3ec5da63f4e0a2bcf9f120ceb563e04
• https://github.com/pollen-robotics/reachy_mini/releases/tag/v1.8.2

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