# Aave Labs proposed flash-loan fee exemptions for new CoW adapters on October 28.

> Aave Labs requested exemptions for factories supporting collateral swaps, debt swaps, repayment with collateral and leverage.

- URL: https://riadefi.com/on-chain/2026-10-28-aave-cow-adapter-fee-exemption/
- Type: Governance
- Stage: Proposed
- Evidence: confirmed
- Materiality: watch
- Event date: 2026-10-28
- Version: 1, published 2026-10-31 (first published 2026-10-31)
- Follow-up: 2026-11-04
- Advisor-relevant: no
- Affects: Aave v3 (protocol)

## What happened

Aave Labs proposed registering new swap adapter factories as fee-exempt flash borrowers on October 28, 2026.

## What changed

Aave Labs requested exemptions for factories supporting collateral swaps, debt swaps, repayment with collateral and leverage.

## What did not change

Aave Labs stated that governance would next need to vote. The proposal establishes no executed exemption.

## Confirmed

- Aave Labs named AaveV3AdapterV3Factory and AaveV3AdapterV4Factory as the factory types.
- Aave Labs proposed using ACLManager.addFlashBorrower for the listed factory addresses.
- Aave Labs included Ethereum Core, Ethereum Prime, Base, Arbitrum, Gnosis, Avalanche, BNB Chain, Polygon, Linea and Plasma.

## Still open

- Aave governance has yet to establish approval and execution through the cited proposal.

## What it means for an advisor

- Ketju should verify executed exemptions before changing the Aave memo’s explanation of swap, repayment and leverage costs.
- The proposed exemptions provide no basis to expand Ketju’s approval beyond Ethereum GHO and sGHO.

## Sources

1. [Aave Labs’ proposal for CoW adapter flash-loan fee exemptions](https://governance.aave.com/t/direct-to-aip-whitelist-new-cow-protocol-adapters-as-flash-borrowers-on-aave-v3-v4/25931) · Aave Labs · 2026-10-28


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Published by Ketju Research on RIADeFi (https://riadefi.com). Educational research for financial professionals; not investment, legal, tax, or compliance advice.