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tBTC Bridge Resumes After Critical Vulnerability Fix; $120M Aave Reserve Frozen

tBTC Bridge Resumes After Critical Vulnerability Fix; $120M Aave Reserve Frozen

First seen 9 Nov 2026, 07:41 UTC • •
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ThreatCluster AI
ThreatCluster •November 9, 2026 at 07:42 UTC
  • •tBTC bridge operations resumed after a nine-day pause due to a critical vulnerability.
  • •Approximately $120 million in tBTC reserves at Aave remains frozen, blocking new transactions.
  • •No unauthorized transfers or abnormal token issuance have been detected during the outage.

Threshold Network's tBTC bridge resumed operations on November 8, 2026, after a nine-day suspension due to a critical vulnerability in the Linux kernel that could allow remote code execution. The bridge had been halted since October 30, 2026, to address this issue, with no evidence of exploitation against tBTC nodes found. Approximately $120 million in tBTC reserves on Aave remains frozen, preventing new deposits and borrowing, although existing users can withdraw and repay loans. The bridge's operations depend on independent node operators who must reconnect after applying security patches. As of now, 4,320 BTC is still held in the bridge wallet, with 4,185 tBTC in circulation. Full service restoration timing remains unclear, pending the return of sufficient node operators. LlamaRisk, Aave's risk management partner, plans to propose lifting reserve restrictions once operations normalize.

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Timeline

2026-10-30
tBTC bridge halted
Threshold Network suspended the tBTC bridge operations due to a critical Linux kernel vulnerability.
Cointelegraph
2026-10-31
Aave freezes tBTC reserves
Aave froze its tBTC reserves to prevent exposure while redemptions were unavailable due to the bridge outage.
Finance.Biggo
2026-11-08
tBTC bridge resumes operations
Threshold announced the resumption of tBTC bridge operations after node operators reconnected following security patches.
Finance.Biggo

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Common questions

What caused the tBTC bridge suspension?
The tBTC bridge was suspended due to a critical vulnerability in the Linux kernel that could allow remote code execution.
When will full service be restored?
Threshold has not provided a specific date for full service restoration; it depends on the return of enough operational node operators.
Can I still access my funds on Aave?
Yes, existing users can withdraw their assets and repay loans, but new deposits and borrowing against tBTC are currently blocked.