LayerZero OFT DVN config (count, threshold, diversity)
Curve Finance's assessment for RD-F-179 — scored yellow on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.
Evidence summary #
Two LayerZero OFT surfaces: (1) FastBridge crvUSD (L2MessengerLZ/VaultMessengerLZ): 2-of-2 DVN (LayerZero Labs + SwissStake) — independently operated, different organizations, adequate diversity. Not a 1-of-N pathway. (2) CRV OFT (curve-xdao bridges to BNB/Sonic/Avalanche/Fantom/Etherlink/Kava): DVN configuration not documented in public sources. Strong contextual evidence of single/default DVN: (a) Curve suspended entirely due to rsETH Kelp DAO exploit — a protocol that had a 1-of-1 DVN configuration compromised via a forged message; (b) Blockaid post-incident audit identified ~47% of LZ OFT apps using 1-of-N (catastrophic) pathway pre-incident; (c) curve-xdao repository contains no DVN configuration documentation. Current status: both surfaces SUSPENDED as of April 19, 2026. No re-enable confirmation as of 2026-04-28. Net: YELLOW — FastBridge adequate, CRV OFT likely-single-DVN pre-suspension with the suspension itself being the realized-risk indicator.
Sources #
- URLBlockaid LayerZero DVN configuration auditBlockaid DVN audit tool — EXPOSED classification for requiredDVNCount + optionalDVNThreshold <= 1retrieved 2026-04-28
- Curve Finance Halts LayerZero Connectivity After rsETH ExploitCurve suspension April 19, 2026 — chains affected, still suspended as of 2026-04-28retrieved 2026-04-28
- curve-xdao GitHub repositorycurve-xdao GitHub: CRV bridge addresses listed but no DVN config documentedretrieved 2026-04-28
- Hypernative: KelpDAO Observation Layer ExploitHypernative Kelp DAO post-mortem: 47% of LZ apps used 1-of-1 DVN pre-incident; Curve suspension triggered by same vulnerability classretrieved 2026-04-28
- Curve Resources cross-chain overview (FastBridge DVN)Curve FastBridge: 2/2 DVN (LZ Labs + SwissStake) explicitly documentedretrieved 2026-04-28
Methodology #
For any LayerZero OFT adapter, read the DVN configuration: count of DVNs, k-of-N threshold, and operator diversity (independent operators vs same-operator multi-DVN).
See the full factor methodology and distribution across all protocols →