Highlights
Denial of Service: 8 prior fixes. Scrutinize any change in this area.
contracts/src/integrations/cert/libraries/EigenDACertVerificationLib.sol: most-fixed (2 issues). Treat as high-risk during review.
14 high-severity fixes in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
Auth Bypass: Certificate verification was repeatedly bypassed: V2 certs accepted without verification, invalid offchainDerivationVersion allowed, and unauthenticated DA operations exposed. These fixes span contract, proxy, and client layers, indicating the checkDACert path is a persistent weak point.
Denial of Service: Certificate verification is DoS-prone: unbounded ABI decoding causes gas exhaustion, missing timeout allows indefinite hangs, and out-of-bounds panics from unchecked quorum lengths. These are distinct failure modes on the same verification path.
Replay Attack: Signed requests across disperser, node, and relay clients lacked timestamp protection, enabling replay of captured authenticated requests. The fix adds timestamps to signatures and server-side stale rejection, but this pattern must be consistently applied to all signed RPCs.