KyberSwap Elastic exploit on 2023-11-22 ($55.2M reported)
Exploit on Ethereum, Arbitrum, OP Mainnet, Polygon, Base, Avalanche, 22 Nov 2023. Reported loss $55.2M. Last verified 4 Nov 2026.
major
Reported loss
$55.2M
as reported by the sources
Recovered
$5.7M
as reported
Status
Partially recovered
updated 26 Oct 2026
Date
Ethereum, Arbitrum, OP Mainnet, Polygon, Base, Avalanche
Summary
KyberSwap Elastic liquidity pools were exploited on 2023-11-22 through a tick-boundary rounding flaw in the swap mechanism, and about $55.2 million was taken from the pools, affecting 2,367 liquidity providers. The team recovered about $5.7 million from front-run bots.
- Protocol
- KyberSwap Elastic
- Type
- Exploit
- Reported loss
- $55,234,535 · as stated: approximately $55,234,535.17 taken from affected pools source: blog.kyberswap.com ↗
- Recovered
- $5,700,000 · as stated: approximately $5.7 million recovered from front-run bots
Facts and where they come from
| Fact | Value | Source |
|---|---|---|
| Date | November 22, 2023 | blog.kyberswap.com ↗ |
| Amount (USD) | $55,234,535.17 | blog.kyberswap.com ↗ |
| Affected users total (USD) | 2,367 liquidity providers; $56,197,284.26 affected assets | blog.kyberswap.com ↗ |
| Recovered (USD) | $5.7 million | blog.kyberswap.com ↗ |
Primary sources
- KyberSwap: Post-mortem of the KyberSwap Elastic exploit ↗ post-mortem · accessed 2026-11-04
Our own summary of facts published by the sources above. We do not attribute fault beyond them. Amounts are as the sources state them (no USD conversion by us); links and quoted figures last checked 2026-11-04.
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