Osmosis has frozen 22. 65 BTC following a forwarding bug on the Nomic chain that its team says compromised bridged Bitcoin reserves, an incident that isolates a cross-chain vulnerability from Bitcoin’s own settlement layer even as it reintroduces the counterparty trust that base-layer holders avoid.
Osmosis has frozen 22.65 BTC following a forwarding bug on the Nomic chain that its team says compromised bridged Bitcoin reserves, an incident that isolates a cross-chain vulnerability from Bitcoin’s own settlement layer even as it reintroduces the counterparty trust that base-layer holders avoid.
The freeze concerns wrapped and bridged representations of Bitcoin, not coins on the Bitcoin network itself. Osmosis, a Cosmos-based decentralized exchange, stated on September 9, 2026 that the bug lived in a custom forwarding mechanism on Nomic, and that its own chain and the inter-blockchain communication protocol were not affected, according to the project’s statement on X. For related coverage, see German Crypto Tax Draft Proposes 25% Rate After 2026.
- What to know: Osmosis has frozen 22.65 BTC of bridged Bitcoin exposure.
- What to know: A Nomic forwarding bug is reported to have compromised the Bitcoin reserves backing Osmosis-listed assets.
Osmosis freezes 22.65 BTC
The 22.65 BTC figure was reported by CryptoSlate on September 10, 2026, describing the balance Osmosis moved to lock following the Nomic flaw. The asset denomination behind that figure was not independently verified on-chain, and it should not be read as a freeze of native Bitcoin on the base layer. For related coverage, see Bitcoin ETF Outflows: $147 Million Claim Unverified.
The frozen amount is distinct from any total loss or reserve shortfall, neither of which the available evidence establishes. A freeze locks funds in place; it does not by itself quantify what, if anything, was permanently drained from the backing pool. For related coverage, see Block Applies to Establish a Bitcoin Bank.
Osmosis lists allBTC, an alloyed asset that represents a basket of bridged Bitcoin tokens. A July 25, 2024 governance discussion describes allBTC as a representative token for a basket that initially included WBTC, WBTC.eth.axl and nBTC, per the Osmosis Community Hall. That basket design is the structural context in which a single bridge’s failure can impair backing. For related coverage, see Bitcoin, Ethereum, XRP, Dogecoin Dip as BTC Whales Hold Back.
Nomic forwarding bug compromises Bitcoin reserves
Osmosis said an exploit on the Nomic chain allowed an attacker to double-spend nBTC and send false vouchers to Osmosis. The team located the flaw in a custom forwarding mechanism on Nomic and stated that Osmosis and IBC were not compromised. The exact exploit sequence and the full extent of the reserve impact are not detailed in the available evidence. For related coverage, see Trezor Warns of Phishing After Email Provider Breach.
Recently, we became aware of an exploit on the Nomic chain. The exploit allowed the attacker to double-spend nBTC, allowing them to send false vouchers to Osmosis. Osmosis and IBC were not compromised, as the bug was in a custom forwarding mechanism on Nomic.
39.84 nBTC of the…
— Osmosis 🧪 (@osmosis) September 9, 2026
Source: @osmosis on X
CryptoSlate reported 39.84 nBTC in the backing basket against 110.57 allBTC in circulation at its reporting cutoff, with invalid nBTC representing 36.03% of backing. Those are reported backing-exposure figures, not proof of a realized holder loss, and the dashboard behind them was not independently fetched.
In response, Nomic and allBTC inflows and outflows were frozen and allBTC minting and redemption were paused, CryptoSlate reported. Governance actions described as planned, not executed, include confiscation of the frozen funds and a community-pool contribution toward recovery.
The allBTC contract is administered by Osmosis governance, with a 3-of-6 moderator subDAO holding the power to disable the pool and mark assets corrupted, per the 2024 governance record. Those moderator powers are the mechanism through which a listed asset can be halted mid-incident, a control absent from Bitcoin’s own base layer where holders bear no such administrative counterparty.
The original launch proposal set static caps of 100% for WBTC, 50% for WBTC.eth.axl and 5% for nBTC. Those were launch parameters and are not the incident-time limits; the later reported 36.03% exposure cannot be read as breaching a still-active 5% nBTC cap, since the current configuration is not established by the evidence.
What remains unclear about the freeze and reserves
The reserve shortfall, if any, is not established by the available evidence. Reported backing exposure is not the same as a confirmed permanent loss, and a single outlet reported the underlying figures without an independent on-chain check.
The status of a fix, the ultimate disposition of the frozen funds, and individual user exposure are absent from the evidence at hand. The confiscation and community-pool recapitalization were described as proposed actions only; no vote or execution was independently confirmed.
These are gaps in the reviewed material, not assertions that the details are unavailable anywhere. Osmosis governance discussions and any Nomic postmortem may fill them, and readers assessing exposure should treat the denomination of the frozen balance as an open question until confirmed on-chain.
The episode echoes the broader security pressure on Bitcoin-adjacent infrastructure, from the recent phishing campaign that followed a Trezor email provider breach to the institutional custody ambitions behind Block’s application to establish a Bitcoin bank. Each underscores that risk in wrapped and bridged Bitcoin sits at the edges, not in the base protocol.
Bitcoin itself traded at $78,102 with a market capitalization near $1.57 trillion, down 1.9% over 24 hours, as the wider market held a Fear & Greed reading of 69, or “Greed.” That base-layer settlement, secured by proof-of-work rather than a moderator subDAO, continued to finalize blocks uninterrupted while the bridged representation was paused, the clearest illustration of where custody risk in this incident actually resides.
Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency and digital asset markets carry significant risk. Always do your own research before making decisions.
