TenderMint from version 0.33.0 and before version 0.33.6 allows block proposers to include signatures for the wrong block. This may happen naturally if you start a network, have it run for some time and restart it (**without changing chainID**). A malicious block proposer (even with a minimal amount of stake) can use this vulnerability to completely halt the network. This issue is fixed in Tendermint 0.33.6 which checks all the signatures are for the block with 2/3+ majority before creating a commit.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| github.com/tendermint/tendermint(Go) | 0 | 0.33.6 | N/A |
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