Sablier Smart Streaming Proxy Audit

Proxy Approval and Stream Management Review of Sablier

Sablier is a multi-chain token streaming protocol that enables time-based payments through smart contracts. The system supports streaming across networks like Ethereum, Optimism, and Polygon, with periphery contracts for proxy-based stream creation using both permit2 signatures and ERC20 approvals.

To evaluate integration safety, Sablier engaged Cantina for a security audits review of proxy targets and approval logic. The assessment covered coarse-grained access control, permit reuse risk, and long-term approval exposure—especially in contexts involving Safe wallet batching or cross-plugin permissions.

Cantina also helps teams like Sablier secure modular infrastructure through bug bounty programs, crowdsourced security competitions, and multisig security, enabling safe stream creation and fund management across wallets and networks.