GHSA-pgp9-98jm-wwq2 alloy-dyn-abi has DoS vulnerability on `alloy_dyn_abi::TypedData` hashing

• crates.io alloy-dyn-abi: < 0.8.26 → fixed in 0.8.26 • crates.io alloy-dyn-abi: >= 1.0.0, < 1.4.1 → fixed in 1.4.1

Impact An uncaught panic triggered by malformed input to `alloy_dyn_abi::TypedData` could lead to a denial-of-service (DoS) via `eip712_signing_hash()`. Software with high availability requirements such as network services may be particularly impacted. If in use, external auto-restarting mechanisms can partially mitigate the availability issues unless repeated attacks are possible. Patches The vulnerability was patched by adding a check to ensure the element is not empty before accessing its first element; an error is returned if it is empty. The fix is included in version `v1.4.1` and backported to `v0.8.26`. Workarounds There is no known workaround that mitigates the vulnerability. Upgrading to a patched version is the recommended course of action. Reported by Christian Reitter & Zeke Mostov from Turnkey