AIKIDO-2026-498866
hydra-core is vulnerable to Code Injection
78
High Risk
This Affects:
hydra-coreTL;DR
Hydra's instantiate() API enforces a name-based blacklist to block dangerous targets in untrusted configurations. The blacklist is incomplete, so execution wrappers such as timeit.timeit, deserialization helpers like pickle.loads, and generic dispatch callables bypass the checks. Untrusted configuration can then trigger arbitrary code execution despite the blacklist. The fix hardens instantiate authorization against unsafe aliases and callable results.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and your application passes untrusted or externally influenced configuration to Hydra's instantiate API.
Background info
hydra-core is vulnerable to Code Injection in versions 1.3.4 - 1.3.5.
How to fix this
Upgrade the hydra-core library to the patch version.
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