# Shibarium Bridge Compromised via Validator Takeover Flash Loan Attack ▴ News

**Published:** 2025-09-14
**Categories:** News

---

The Shibarium exploit reveals a critical vulnerability vector in cross-chain bridge architecture. The system’s integrity was compromised by manipulating the governance structure itself. An attacker leveraged a flash loan to acquire a supermajority of validator signing keys, granting temporary control over the network’s consensus mechanism. This allowed the actor to authorize malicious withdrawals directly from the bridge contract.

The event underscores the systemic risk inherent when a network’s governance token, designed for distributed control, becomes a tool for centralized attack through capital velocity. The immediate consequence is a necessary re-evaluation of security models for proof-of-stake bridges, particularly the relationship between token liquidity and validator security. The developers’ response, freezing staking functions, illustrates a manual override to a systemic design flaw.

The incident provides a precise, high-level analytical observation on the systemic implication of using liquid governance tokens as the primary defense for a cross-chain bridge’s consensus mechanism.

- 
**Total Value Drained** ▴ Approximately $2.4 million in ETH and SHIB

- 
**Attack Vector** ▴ 4.6 million BONE tokens borrowed via flash loan to control 10 of 12 validators

- 
**Strategic Consequence** ▴ Immediate freeze of network staking and unstaking functions to neutralize the attack

Signal Acquired from ▴ <a href="https://www.theblock.co/post/302305/shibarium-bridge-suffers-sophisticated-flash-loan-attack-with-2-4-million-drained?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" target="_blank" rel="nofollow">The Block</a>

**Tags:** [Governance Token](https://options.greeks.live/area/governance-token/), [Layer 2 Network](https://options.greeks.live/area/layer-2-network/), [Flash Loan Attack](https://options.greeks.live/area/flash-loan-attack/), [Temporary Validator Power](https://options.greeks.live/area/temporary-validator-power/), [Protocol Security](https://options.greeks.live/area/protocol-security/), [Bridge Contract](https://options.greeks.live/area/bridge-contract/)	

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---

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