Vladimir S. | Officer's Notes
Vladimir S. | Officer's Notes
BAL-14.75%
USDT+0.64%
APE-6.67%
ETH-6.30%
USDC+0.02%
🚨 Balancer potentially exploited! $70.9M moved to a fresh wallet. Tokens moved: - 6.85K $OSETH - 6.59K $WETH - 4.26K $wSTETH
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Sources @atoms_res & @nansen_ai
Nansen 🧭
Nansen 🧭
.@Balancer potentially exploited. $70.9M moved to a fresh wallet. Tokens moved: - 6.85K $OSETH - 6.59K $WETH - 4.26K $wSTETH
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@atoms_res @nansen_ai manageUserBalance has a faulty access check In _validateUserBalanceOp it checks msg.sender against user supplied op.sender. It allows to execute UserBalanceOpKind.WITHDRAW_INTERNAL (kind = 1) Source: @DefimonAlerts
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@atoms_res @nansen_ai @DefimonAlerts It’s like 120-130mm+ atm This seems to be the actual exploit txn, btw, the one from X is just the withdrawal.
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@atoms_res @nansen_ai @DefimonAlerts these are the last txs before hack started on EURe on Gnosis Balancer v2 vault: the EURe/SDAI pool is emptied:
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@atoms_res @nansen_ai @DefimonAlerts Looks like oracle manipulation?..
okkothejawa
okkothejawa
this is likely not the root cause as in all `manageUserBalance` calls ops.sender == msg.sender exploit probably happened in the tx before this one where the contract that withdrawn the assets was created, as it caused some state changes in Balancer vault
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@atoms_res @nansen_ai @DefimonAlerts . @Polymarket has a market running for 100m+ exploit before 2026…
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@atoms_res @nansen_ai @DefimonAlerts @Polymarket The project team commented on the incident: «We’re aware of a potential exploit impacting Balancer v2 pools. Our engineering and security teams are investigating with high priority. We’ll share verified updates and next steps as soon as we have more information.»
@atoms_res @nansen_ai @DefimonAlerts @Polymarket 128m$ damage until now, still no more details.
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