A critical vulnerability that affected 6 cross-chain tokens was reported by security firm Dedaub and fixed by Multichain team. If you ever have approved any of these 6 tokens on the Router(WETH, PERI, OMT, WBNB, MATIC, AVAX), please login into https://app.multichain.org/#/approvals to remove any approvals of the 6 tokens asap. Otherwise, your assets will be at risk.
All assets on both V2 Bridge and V3 Router are safe. All cross-chain transactions can be done safely as usual.
- Who needs to revoke approvals
Only users who had approved the 6 tokens (WETH, PERI, OMT, WBNB, MATIC, AVAX) on Router are required to revoke approvals. For other people, no action is needed.