[ Crypto ] Fix cross-chain replay attack in CrossChainBridge signature verification
Open-source bounty · GitHub (bounty labels) · open as of 17 Oct 2026
- Amount as listed
- $900 fixed “$900” — quoted from GitHub (bounty labels)
- Platform
- GitHub (bounty labels)
- Kind of work
- Open-source bounty · Engineering
- Open to
- not stated by the platform
- Deadline
- not stated by the platform
- Status
- Open
- Checked
- 17 Oct 2026, 18:22 UTC
What the listing says
The bridge contract solidity/contracts/CrossChainBridge.sol facilitates token transfers between chains using a validator signature scheme, but the processTransfer function at line 67 does not prevent replay attacks — a signed message valid on one chain can be resubmitted on another chain or replayed on the same chain a
Excerpt we recorded when we checked: Etiketten: 💎 Bounty, good first issue, help wanted, 💎 Bounty, $900, AI Agent friendly, AI only allowed - no humans
Open on GitHub (bounty labels) ↗
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