AIKIDO-2026-10746
aioshelly is vulnerable to Authentication Bypass by Capture-replay
66
Medium Risk
This Affects:
aioshellyTL;DR
The package fixed a weakness in Shelly RPC authentication handling by correctly processing server authentication challenges (nonce/algorithm) and sequencing the auth counter (nc), then generating auth frames using the current challenge state. It also rejects unsupported auth algorithms, preventing incorrect/stale auth computations that could lead to auth bypass/failure behavior.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
aioshelly is vulnerable to Authentication Bypass by Capture-replay in versions 2.0.0 - 13.24.0.
How to fix this
Upgrade the aioshelly library to the patch version.
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