CRITICAL 9.8
GHSA-mrhh-3ggq-23p2
Horovod Vulnerable to Command Injection
Details
Horovod versions up to and including v0.28.1 are vulnerable to unauthenticated remote code execution. The vulnerability is due to improper handling of base64-encoded data in the `ElasticRendezvousHandler`, a subclass of `KVStoreHandler`. Specifically, the `_put_value` method in `ElasticRendezvousHandler` calls `codec.loads_base64(value)`, which eventually invokes `cloudpickle.loads(decoded)`. This allows an attacker to send a malicious pickle object via a PUT request, leading to arbitrary code execution on the server.
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Affected packages
PyPI / horovod
Introduced in:
0 No fixed version published yet for horovod (pip). Pin to a known-safe version or switch to an alternative.