UMA Optimistic Governor Audit

OpenZeppelin21 Jul 2022Repository at commit fca8e24

Audit · firm’s term: audit

OpenZeppelin reviewed UMA (UMA Optimistic Governor Audit) on 21 Jul 2022: 9 findings, 0 critical; 7 marked fixed, 2 open.

No open critical findings

Open the report Open UMA’s security record

Report hosted on blog.openzeppelin.com.

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Findings9

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

Severity	Open	Acknowledged	Fixed
Critical	0	0	0
High	0	0	0
Medium	1	0	3
Low	1	0	4

MediumChange of collateral could result in unintended bond valueFixed

The report gives no description here.

MediumLack of event emission after sensitive actionsFixed

The report gives no description here.

MediumLack of input validationFixed

The report gives no description here.

LowDuplicated codeFixed

The report gives no description here.

LowEvents lacking informationFixed

The report gives no description here.

LowMisleading inline documentationFixed

The report gives no description here.

LowProposals can be deleted repeatedlyFixed

The report gives no description here.

Contracts in scope

No deployed address is recorded for this audit.

The report names a repository or files. Open the report to see its scope.

Repository and files the report names (4)

https://github.com/UMAprotocol/protocol/packages/core/contracts/oracle/implementation/OptimisticOracle.sol at commit fca8e24275e928f7ddf660b5651eb93b87f70afb
https://github.com/UMAprotocol/protocol/packages/core/contracts/oracle/interfaces/OptimisticOracleInterface.sol at commit fca8e24275e928f7ddf660b5651eb93b87f70afb
https://github.com/UMAprotocol/protocol/packages/core/contracts/zodiac/OptimisticGovernor.sol at commit fca8e24275e928f7ddf660b5651eb93b87f70afb
https://github.com/UMAprotocol/protocol/packages/core/contracts/common/implementation/Lockable.sol at commit fca8e24275e928f7ddf660b5651eb93b87f70afb

Part of UMA’s security record

UMA

Audits6 audits by 1 firmLast audit Apr 2025, by OpenZeppelin.

Critical findingsNo open critical findingsAcross the 6 reports, 1 critical finding was reported. It is marked fixed by the firm that reported it.

Open UMA’s security record

Security firm

OpenZeppelin

67 projects reviewed · 184 reports · latest Aug 2026

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