🚨 Balancer potentially exploited!
$70.9M moved to a fresh wallet. Tokens moved:
- 6.85K $OSETH
- 6.59K $WETH
- 4.26K $wSTETH

@atoms_res @nansen_ai manageUserBalance has a faulty access check
In _validateUserBalanceOp it checks msg.sender against user supplied op.sender. It allows to execute UserBalanceOpKind.WITHDRAW_INTERNAL (kind = 1)
Source: @DefimonAlerts



@atoms_res @nansen_ai @DefimonAlerts It’s like 120-130mm+ atm
This seems to be the actual exploit txn, btw, the one from X is just the withdrawal.


@atoms_res @nansen_ai @DefimonAlerts these are the last txs before hack started on EURe on Gnosis Balancer v2 vault:
the EURe/SDAI pool is emptied:

@atoms_res @nansen_ai @DefimonAlerts Looks like oracle manipulation?..
@atoms_res @nansen_ai @DefimonAlerts . @Polymarket has a market running for 100m+ exploit before 2026…

@atoms_res @nansen_ai @DefimonAlerts @Polymarket The project team commented on the incident:
«We’re aware of a potential exploit impacting Balancer v2 pools.
Our engineering and security teams are investigating with high priority.
We’ll share verified updates and next steps as soon as we have more information.»
@atoms_res @nansen_ai @DefimonAlerts @Polymarket 128m$ damage until now, still no more details.
7.48K
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