YFarmX

Tools Crypto Exploit Tracker exploit-0006

Exploit record

Tectonic Oracle Manipulation and Cronos Halt

Loss
$120M
Attack vector
Oracle Manipulation
Chain
Cronos
Sector
Lending

What happened

Cronos's post-mortem puts Tectonic's 30 August collateral-manipulation incident at approximately $120.4m in affected borrowing. A validator-coordinated rollback reversed about $111.2m; Cronos says $9.19m had left the chain before the halt and remained unrecovered. The headline figure records gross affected borrowing, before the restoration.

The post-mortem, checked on 8 September, says validators halted at block 90,907,150 and restored state to block 90,896,188, with production resuming from 90,896,189 at 23:49:01 UTC on 30 August. Reconciliation with bridges and exchanges continued. YFarmX's earlier independent Borrow-event reconstruction valued the gross movement at $124,472,178, using its own asset quantities and prices; that estimate remains documented in the investigation. This tracker now uses Cronos's $120.4m official estimate for consistency with its $111.2m reversal and $9.19m unrecovered figures. The earlier $6.8m traced off-chain was a partial flow estimate, superseded here by the operator's broader reconciliation.

Sources

One record from the Crypto Exploit Tracker, maintained by the Security Desk. Data: CSV · JSON ·RSS · CC BY 4.0 with attribution to YFarmX.Tracker updated · 15 September 2026