Swell Freezes swETH and rswETH Withdrawals Until It Corrects Their Exchange Rates

Introduction

Swell has temporarily frozen deposits and withdrawals for its liquid‑staking tokens swETH and rswETH. The move comes after the contracts began reporting net asset values (NAV) that were significantly higher than the prices these tokens fetched on decentralized exchanges. While the protocol assures users that all funds remain secure, it has not provided a timeline for when normal operations will resume.

Why the freeze matters

The core issue is a mismatch between the on‑chain NAV and market prices:

• The swETH contract reported a rate of about 1.203 ETH, roughly 6 % above the clean market rate of 1.133 ETH identified by on‑chain analysts.
• The rswETH contract showed a rate of about 1.138 ETH, about 5 % higher than its clean market rate of 1.082 ETH.

On popular DEXs, swETH was trading for roughly 1.089 WETH in a Uniswap pool with modest liquidity, while rswETH fetched around 1.029 WETH on Curve. This disparity can lead to arbitrage opportunities, undermine confidence, and expose users to potential losses if they withdraw at inflated rates.

What happened behind the scenes

Earlier in the week, security researcher Spreek flagged suspicious activity:

• Admin keys for both tokens appeared compromised, with the NAV being artificially raised by up to 1 % per hour.
• Four malicious upgrade contracts were detected, capable of siphoning roughly 2,500 ETH, though none were executed through Swell’s multisig.
• The incident resembled a "BOT‑key abuse" scenario, according to Odysseus of Phylax Systems, though no actual ETH loss was confirmed.

Swell responded by stating that no ETH had left the withdrawal or deposit contracts and that it was investigating with security partners. The protocol also warned users about heightened phishing risk during the outage.

Open questions and next steps

• Root cause: While some researchers hinted at a possible link to the cloud platform Railway, Swell has not confirmed any connection.
• Reopening timeline: The team has committed to correcting the NAV before resuming operations but has not set a specific date.
• User impact: Holders cannot redeem their tokens through Swell, and the market price gap may persist on DEXs until the NAV is aligned.

Practical takeaways

1. Hold off on withdrawals until Swell announces that the NAV has been reconciled.
2. Monitor official channels for updates on the investigation and any security advisories.
3. Avoid interacting with unofficial links or contracts claiming to fix the rates, as phishing attempts are likely to increase during this period.
4. Consider alternative liquid‑staking options if you need immediate access to your ETH holdings.

--- Swell’s swift freeze demonstrates the importance of robust key management and real‑time NAV monitoring in liquid‑staking protocols. Users should stay vigilant, keep funds in secure wallets, and await official guidance before taking further action.