How Does Mantle Restaking Work?

Restaking|Risk B-|5 mechanisms|4 interactions

Mantle Restaking (mETH Protocol) is a liquid staking and restaking platform that issues mETH for ETH staking and cmETH for restaking across EigenLayer, Karak, and Symbiotic. With $154M TVL in restaking and backed by the broader Mantle ecosystem ($4.2B FDV), its B- grade reflects well-audited infrastructure and strong institutional backing, offset by the inherent risks of multi-layer restaking and AVS slashing contagion.

TVL

$173M

Sector

Restaking

Risk Grade

B-

Value Grade

C-

Core Mechanisms

3.4.2

mETH — reward-bearing liquid staking token for ETH staking

Standard reward-bearing LST pattern

8.3.1

Novel

cmETH — liquid restaking token across EigenLayer, Karak, and Symbiotic

Novel: multi-platform restaking with unified receipt token

6.1.1

Liquidity buffer via Aave main markets

Standard lending integration for idle capital

7.3.1

Powder points system for cmETH restakers

Standard points-to-token incentive

3.1.1

ETH staking rewards via mETH exchange rate appreciation

Standard pro-rata staking reward distribution

How the Pieces Interact

cmETH multi-platform restaking↔AVS slashing riskHigh

cmETH restakes across EigenLayer, Karak, and Symbiotic simultaneously. A slashing event on any single AVS reduces cmETH value for all holders.

mETH → cmETH layered dependency↔ETH price volatilityHigh

The three-layer stack amplifies depeg risk. If mETH depegs from ETH, cmETH experiences both the mETH depeg and restaking risk.

Aave liquidity buffer↔Mass redemption pressureMedium

During high redemption periods, Aave utilization may spike, preventing ETH withdrawal from the buffer.

Powder points incentives↔cmETH TVL sustainabilityMedium

Points-based incentives attract mercenary capital that exits when incentives end.

What Could Go Wrong

  1. Restaking slashing contagion — cmETH restakes mETH across EigenLayer, Karak, and Symbiotic AVSs. Slashing events on any AVS could reduce the underlying value of cmETH, propagating losses to all cmETH holders regardless of which AVS caused the slashing.
  2. Layered token dependency — cmETH's value depends on mETH's value, which depends on ETH staking. This three-layer dependency chain (ETH → mETH → cmETH) means a disruption at any layer cascades through the entire stack.
  3. Smart contract complexity — the vertically integrated architecture spanning staking, restaking, liquidity buffers (Aave), and multiple restaking platforms creates a large smart contract surface area.
  4. Liquidity risk during mass redemption — while the Aave liquidity buffer helps, a simultaneous exit from cmETH positions could exceed buffer capacity, forcing users to wait for ETH unstaking delays.

Multi-AVS Slashing Cascade Through cmETH

Moderate

Trigger: Slashing event on an EigenLayer AVS that cmETH is restaked to, combined with mETH/ETH depeg exceeding 2%

  1. 1.An AVS secured by cmETH restaking experiences a slashing event — cmETH exchange rate drops as slashed mETH is deducted from the restaking portfolio
  2. 2.cmETH holders rush to unstake and redeem mETH — Redemption pressure exceeds Aave liquidity buffer capacity
  3. 3.cmETH trades at discount on DEXes — DeFi protocols using cmETH as collateral face potential liquidations
  4. 4.Contagion spreads to mETH as users question the broader staking infrastructure — mETH depeg creates losses for both mETH-only and cmETH holders
See all 2 collapse scenarios in the full risk report →

Risk Profile at a Glance

Mechanism Novelty3/15
Interaction Severity6/20
Oracle Surface2/10
Documentation Gaps2/10
Track Record3/15
Scale Exposure7/10
Regulatory Risk3/10
Vitality Risk7/10
B-

Overall: B- (33/100)

Lower score = safer

More on Mantle Restaking

Is Mantle Restaking Safe?

Safety analysis

Is Mantle Restaking a Good Investment?

Value analysis

Full Risk Report

All mechanisms & interactions

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