delegatecall with user-controlled target

Hyperlane's assessment for RD-F-012 — scored green on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

No user-controlled delegatecall found in Mailbox.sol or ISM contracts. The TransparentUpgradeableProxy delegates to implementation only via ProxyAdmin. ISM address used in process() is resolved from a registry, not user-controlled at call time. Score: green.

Sources #

GitHub
Mailbox.sol — Hyperlane MonorepoMailbox.sol process() function — ISM resolved from recipientIsm() registry, not caller-controlledretrieved 2026-05-17

Methodology #

Determine whether any contract uses `delegatecall` where the target address is or can be user-supplied without an on-chain allowlist.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol hyperlane factor RD-F-012 score green collected_at 2026-05-16 23:03:56