Hack history / 2026 / Hack or exploit
Giddy
Hack or exploit on Apr 23, 2026 · Incomplete Signature Coverage
ATTACK TX CONFIRMED ON CHAINSOURCES AGREE ON DATE AND LOSS · 3 SOURCES
Lost
$1.3M
dollars at the time
Returned
none listed
as the sources state it
Rank
#837
among thefts by dollars lost
What happened
On April 23, 2026, GiddyVaultV3 on Ethereum was exploited for $1.3M via incomplete EIP-712 signature coverage. Unvalidated parameters (aggregator, fromToken, toToken, amount) in SwapInfo structure allowed attackers to manipulate transaction approvals.
Details
- Date
- Apr 23, 2026
- Kind
- Hack or exploit
- Method
- Incomplete Signature Coverage
- How in
- Smart contract bug
- Target
- DeFi protocol
- Chains
- Ethereum
Reported by
Cite this page
SwanBluechip, "Giddy hack, Apr 23, 2026: $1.3M lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht1367f26762/ (data as of 2026-11-01).