Ethereum Name Service (ENS)
ChainSecurity reviewed ENS (Ethereum Name Service (ENS)) on 17 Sep 2021: 6 findings, 0 critical; all marked fixed.
No open critical findings
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Findings6
Statuses are the security firm’s own, from its report.
| Severity | Open | Acknowledged | Fixed |
|---|---|---|---|
| Critical | 0 | 0 | 0 |
| High | 0 | 0 | 0 |
| Medium | 0 | 0 | 2 |
| Low | 0 | 0 | 4 |
MediumExpired Domains Look Valid for the SubdomainsFixed
The report gives no description here.
MediumOld State From Expired Domains Can Block Legitimate ActionsFixed
The report gives no description here.
LowIncorrect Specification for Unwrapping FunctionsFixed
The report gives no description here.
LowRepetitive CodeFixed
The report gives no description here.
LowSpecification Unclear for setSubnode* FunctionsFixed
The report gives no description here.
LowVariable node Assigned but Never Used in wrapETH2LDFixed
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.
Part of ENS’s security record
ENSAudits2 audits by 2 firmsLast audit Mar 2026, by Cyfrin.
Critical findingsNo open critical findingsAcross 2 reports.
Open ENS’s security recordSecurity firm
ChainSecurity81 projects reviewed · 286 reports · latest Sep 2026
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