Hack history / 2026 / Hack or exploit
Ethervista
Hack or exploit on Oct 8, 2026 · Arithmetic Error
SOURCES AGREE ON DATE AND LOSS · 2 SOURCES
Lost
$19K
dollars at the time
Returned
none listed
as the sources state it
Rank
#2,147
among thefts by dollars lost
What happened
EtherVista’s EtherVistaPair.swap() contained an integer overflow vulnerability in its constant-product invariant check. Because the contract multiplied two uint112 reserves without sufficient overflow protection, the calculation could wrap around and incorrectly validate swaps that reduced the pool’s actual reserve product. An attacker registered a malicious contract as an authorized router and executed two crafted swaps to withdraw WETH and VISTA from the pool
Details
- Date
- Oct 8, 2026
- Kind
- Hack or exploit
- Method
- Arithmetic Error
- How in
- Smart contract bug
- Target
- DeFi protocol
- Chains
- Ethereum
Reported by
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Cite this page
SwanBluechip, "Ethervista hack, Oct 8, 2026: $19K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht030483d0aa/ (data as of 2026-10-31).