PT-2025-62952

Summary A vulnerability exists in Babylon’s BLS vote extension processing where a malicious active validator can submit a VoteExtension with the block hash field omitted from the protobuf serialization. Because protobuf fields are optional, unmarshalling succeeds but leaves BlockHash as nil...

GO-2024-2638 ValidateVoteExtensions function in Cosmos SDK may allow incorrect voting power assumptions in github.com/cosmos/cosmos-sdk

The default ValidateVoteExtensions helper function infers total voting power based on the injected VoteExtension, which are injected by the proposer. If your chain utilizes the ValidateVoteExtensions helper in ProcessProposal, a dishonest proposer can potentially mutate voting power of each...

Improper Input Validation

github.com/cosmos/cosmos-sdk is vulnerable to Improper Input Validation. The vulnerability is due to inadequate validation in the ValidateVoteExtensions function within abciutils.go. This flaw allows attackers to exploit the ValidateVoteExtensions helper function by inferring total voting power...