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Cosmos IBC Reentrancy Infinite Mint
Research ·

Cosmos IBC Reentrancy Infinite Mint

This post discusses a vulnerability in ibc-go, a reference implementation of the Cosmos Inter-Blockchain Communication (IBC) protocol. A reentrancy vulnerability during the handling of timeout messages could have allowed an attacker to mint an infinite amount of IBC tokens on affected Cosmos chains.

Ethereum Log Confusion in Polygon's Heimdall
Research ·

Ethereum Log Confusion in Polygon's Heimdall

In this post, we describe a vulnerability in Heimdall, the validator software of the Polygon Proof-of-Stake (PoS) blockchain. This flaw, if exploited, could have allowed a rogue/compromised validator to take over the Heimdall consensus layer and inject fraudulent events into the StakeSync mechanism.

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