Stale-approval exposure on deprecated router

Symbiotic's assessment for RD-F-168 — scored green on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

No deprecated router or contract surface identified. DefaultCollateral Migrator (0x8f152feaa99...) is an active migration helper, not a deprecated contract. Protocol is original with no v1-era deprecated router surface. No stale user approvals to deprecated contracts identified.

Sources #

URL
LlamaRisk — Symbiotic: No Deprecated ArchitectureLlamaRisk Symbiotic research — protocol is a single-version original design; no deprecated architectureretrieved 2026-05-16
Etherscan
Symbiotic DefaultCollateral MigratorDefaultCollateral Migrator 0x8f152feaa99eb6656f902e94bd4e7bcf563d4a43 — active migration helper, Etherscan-labeled as suchretrieved 2026-05-16

Methodology #

Count the number of active user approvals (ERC-20 `allowance`) to deprecated router or protocol contracts.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol symbiotic factor RD-F-168 score green collected_at 2026-05-16 09:25:24