Blockchain

Why does upgrading my smart contract let me silently corrupt storage that auditors already blessed?

Oportunidad

Upgradeable proxy patterns (UUPS, Transparent Proxy, Diamond) are standard in production DeFi but carry a strict constraint: the storage layout of a new implementation must be compatible with every slot assigned by the previous one. Insert a new state variable at the wrong position and every subsequent slot is corrupted silently, with no on-chain error. Automated checkers like OpenZeppelin's upgrade plugin catch naive cases but miss ERC-7201 namespaced storage with custom packing, assembly-level slot assignments, and Diamond facet cross-collision where two facets claim the same storage region. A January 2026 peer-reviewed study (ProxyLens) found a significant class of inter-facet collision vulnerabilities that existing tools do not detect. Auditors review implementation contracts in isolation and cannot reconstruct the full storage map of a proxy with multiple delegated facets.

Por qué importa

A tool that builds a complete, version-diffed storage map across all proxy and implementation contracts would turn a class of silent data corruption into a blocked deployment.

Cómo evalúo la oportunidad

La Puntuación de Oportunidad es mi propia lectura, no una medición: cuánto duele, con qué frecuencia aparece y qué tan poco existe para resolverlo hoy. Un valor más alto significa que creo que vale más la pena construirlo.

Gravedad9/10

Cuánto dolor causa cuando aparece.

Frecuencia6/10

Con qué frecuencia la gente se topa con ello.

Espacio en blanco8/10

Qué tan pocas herramientas buenas existen para ello hoy.