Storage-layout collision risk across upgrades
Axelar Network's assessment for RD-F-142 — scored yellow on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.
Evidence summary #
AxelarGateway uses EternalStorage pattern (key-value mapping) which is structurally collision-resistant across upgrades. ITS uses EIP-1967 proxy with standard upgradeable storage layout — 6 upgrades without reported storage collision. OZ upgrades plugin usage not confirmed. Manual storage layout review not performed in this session.
Sources #
- GitHubAxelarGateway.sol — GitHubAxelarGateway.sol inherits EternalStorage — key-value storage collision-resistant across upgradesretrieved 2026-05-17
- ITS Proxy — EtherscanITS proxy EIP-1967 pattern — 6 upgrades without collision reportsretrieved 2026-05-17
Methodology #
Determine whether the OZ upgrades-plugin or manual review flags a storage-layout collision risk between implementation versions.
See the full factor methodology and distribution across all protocols →
rubric_version v1.7.0 protocol axelar factor RD-F-142 score yellow collected_at 2026-05-16 21:57:49