Kanga Exchange security record
As of 3 Nov 2026, Kanga Exchange has 1 audit report on Trustblock, by CertiK, dated 17 Apr 2023. That report lists no open critical findings. It also holds 1 deployed contract on 1 chain.
Record last updated . It holds audits and findings, contracts and incidents up to Nov 2026. Trustblock does not review code.
Audits1
Newest first
| Audit | Security firm | Date | Scope | Critical findings | Report |
|---|---|---|---|---|---|
| Kanga Exchange | Security firm: CertiK | Date: | Scope: 1 address on Ethereum | No open critical findings | Open · skynet.certik.com |
Findings7
Statuses are the security firm’s own, from each report.
| Severity | Open | Acknowledged | Fixed |
|---|---|---|---|
| Critical | 0 | 0 | 0 |
| High | 0 | 0 | 1 |
| Medium | 0 | 0 | 0 |
| Low | 0 | 6 | 0 |
LowDoes not conform to EIP-20Kanga Exchange · CertiK · 17 Apr 2023Acknowledged
According to [EIP-20](https://eips.ethereum.org/EIPS/eip-20), transfers of 0 values MUST be treated as normal transfers and fire the `Transfer` event. However, both `transfer()` and `transferFrom()` will return `false` and not emit an event if the input `_value` is 0.
Open the reportLowERC20 Approval Race ConditionKanga Exchange · CertiK · 17 Apr 2023Acknowledged
The ERC-20 `approve` function has a well-known race condition whereby an adjustment of an existing approval can be exploited to utilize the full amount of the previously set approval as well as the newly set approval by monitoring the transaction mempool. See also [ERC20 API: An Attack Vector on Approve/TransferFrom Methods](https://docs.google.com/document/d/1YLPtQxZu1UAvO9cZ1O2RPXBbT0mooh4DYKjA_jp-RLM/edit#heading=h.m9fhqynw2xvt)
Open the reportLowSolidity Version Not RecommendedKanga Exchange · CertiK · 17 Apr 2023Acknowledged
Solidity frequently releases new compiler versions. Using an old version prevents access to new Solidity security features. In addition the contracts have an unlocked compiler version. An unlocked compiler version in the source code of the contract permits the user to compile it at or above a particular version. This, in turn, leads to differences in the generated bytecode between compilations due to differing compiler version numbers. This can lead to ambiguity when debugging, as compiler specific bugs may occur in the codebase that would be hard to identify over a span of multiple compiler versions rather than a specific one.
Open the reportLowToo Many DigitsKanga Exchange · CertiK · 17 Apr 2023Acknowledged
Literals with many digits are difficult to read and review.
Open the reportLowTransfers do not revert on failureKanga Exchange · CertiK · 17 Apr 2023Acknowledged
Both functions `transfer()` and `transferFrom()` return false instead of reverting on failure. This conforms to the ERC-20 standard, but it is often mistakingly assumed that these functions will revert on failure.
Open the reportLowUnused ModifierKanga Exchange · CertiK · 17 Apr 2023Acknowledged
The modifier `isOwner()` is declared but never used in the contract.
Open the reportContracts1
| Address | Chain | Source code |
|---|---|---|
| 0x471d113059324321749e097705197a2b44a070fc | Chain: Ethereum | Source code: Verified source |
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