tBTC Bridge Resumes as $120M Aave Reserve Remains Frozen

Threshold Network’s tBTC bridge has partially resumed onchain operations following a nine-day security pause, but an Aave reserve containing approximately $120 million in tBTC remains frozen. The reserve, which sits on Ethereum Core, continues to block new tBTC deposits and prevents the asset from being used as additional borrowing collateral. Existing users can still withdraw their funds and repay loans.

Threshold halted the bridge on Oct. 30 after independent node operators began addressing a critical Linux kernel vulnerability that could allow remote code execution on unpatched servers. The project said it found no evidence that the flaw had been exploited against tBTC nodes. Operators are now reconnecting with security patches applied, allowing requests submitted before the shutdown to be processed as more nodes return online.

New deposits, minting and redemptions remain disabled until Threshold determines that enough operators are available. The network currently holds roughly 4,320 BTC in bridge wallets, compared with about 4,185 tBTC in circulation, and Threshold reported no unauthorized Bitcoin transfers or token minting. Aave risk provider LlamaRisk said it plans to propose restoring the reserve once the bridge returns to normal operations.