JOJO security record

As of 3 Nov 2026, JOJO has 1 audit report on Trustblock, by CertiK, dated 9 Dec 2022. That report lists no open critical findings.

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Record last updated . It holds audits, findings and contracts up to Nov 2026, and incidents up to Oct 2026. Trustblock does not review code.

Audits1

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AuditSecurity firmDateScopeCritical findingsReport
JOJO - ⅢSecurity firm: CertiKDate: Scope: Files named in the reportNo open critical findingsOpen · skynet.certik.com

Findings18

Statuses are the security firm’s own, from each report.

SeverityOpenAcknowledgedFixed
Critical000
High010
Medium020
Low4011
HighCentralization Risks in JOJOOperation.solJOJO - Ⅲ · CertiK · 9 Dec 2022Acknowledged

In the contract `JOJOOperation` the role `_owner` has authority over the functions shown in the diagram below. Any compromise to the `_owner` account may allow the hacker to take advantage of this authority and extract all the funds via setting of bad `RiskParams` (fake Oracle, unexpected `liquidationThreshold` and `insuranceFeeRate`) . ![](https://accelerator-tasks-prod.acc.corp.certik.com/c63d9dfbf2774ef4b8f57a7599ec7724/diagrams/centralization_JOJOOperation-JOJOOperation-_owner.svg)

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Medium`validOrderSender` can manipulate the marketJOJO - Ⅲ · CertiK · 9 Dec 2022Acknowledged

`validOrderSender` can "replay" a cancelled off-chain order or fulfill makers' orders in wrong order. `validOrderSender` prepares a set of orders to execute the `Perpetual.trade()`. Each order should be signed by `order.signer` or by her operator. However, the cancelled order can still be used until it expires. `nonce` part of the order is only used to distinguish orders, it is never checked on-chain and not "consumed" after cancellation. `validOrderSender` can use the taker order and fulfill her own maker order with the worst possible price, ignoring all the other maker orders with better prices.

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MediumOpen positions are discarded if `Perpetual` is deJOJO - Ⅲ · CertiK · 9 Dec 2022Acknowledged

Function `setPerpRiskParams()` allows to deregister the Perpetual from the Dealer even if there are open positions. Users with positive `credit` will suffer loss, users with negative will gain profit. It would be more fair to forcefully close all the positions before deregistering.

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Contracts

No deployed address is recorded for these audits.

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