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CVE-2021-46320

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CVE-2021-46320

Published: Feb 4, 2022

Modified: Aug 4, 2024

PUBLISHED

Description

In OpenZeppelin <=v4.4.0, initializer functions that are invoked separate from contract creation (the most prominent example being minimal proxies) may be reentered if they make an untrusted non-view external call. Once an initializer has finished running it can never be re-executed. However, an exception put in place to support multiple inheritance made reentrancy possible, breaking the expectation that there is a single execution.

VendorProductVersions

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affected
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