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Premia Labs Loses $464K in Arbitrum Vault Exploit

Premia Labs Loses $464K in Arbitrum Vault Exploit

First seen 1 Nov 2026, 15:45 UTC • •

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ThreatCluster AI
ThreatCluster •November 1, 2026 at 17:19 UTC
  • •Premia Labs lost approximately $464,600 in a crypto exploit on Arbitrum.
  • •The attacker used flash loans to drain options vaults by creating empty pools.
  • •Investigations are ongoing, with no recovery plans announced yet.

Premia Labs experienced a significant loss of approximately $464,600 due to an exploit targeting its options vaults on the Arbitrum network. The attacker utilized flash loans to create empty options pools, allowing them to withdraw collateral from the vaults. The stolen assets were subsequently moved across blockchains and converted into Bitcoin. Investigations are ongoing, but Premia Labs has not yet announced any recovery plans or reimbursements for affected users. The incident underscores the vulnerabilities present in decentralized finance systems, particularly concerning cross-chain asset transfers. The reported loss figures vary slightly between sources, with one article citing approximately $437,000. The attack involved multiple transactions targeting six vaults, exploiting the mechanics of the vault system.

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Timeline

2026-11-01
Premia Labs exploit reported
Premia Labs disclosed a loss of approximately $464,600 due to an exploit on its Arbitrum vaults, with investigations underway.
Pluang
2026-11-01
Exploit details revealed
The exploit involved routing collateral through option pools to withdraw liquidity, draining approximately $437,000 from six vaults.
Phemex

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Common questions

What was the total loss from the exploit?
Premia Labs reported a loss of approximately $464,600 due to the exploit.
How did the attacker exploit the vaults?
The attacker used flash loans to create empty options pools, allowing them to withdraw collateral from the vaults.
Are there any recovery plans announced?
As of now, Premia Labs has not announced any recovery plans or reimbursements for affected users.