Solady lacks extcodesize validation on implementation in ERC4337Factory
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Solady is software that provides Solidity snippets with APIs. Starting in version 0.0.125 and prior to version 0.1.24, when an account is deployed via a proxy, using regular Solidity to call its initialization function may result in a silent failure, if the initialization function does not return a `bool` or some other return data. This is because regular Solidity uses `extcodesize(proxy)` to decide if call succeeds. This is insufficient in the case when the proxy points to an empty implementation. Users should upgrade to Solady v0.1.24 or later to receive a patch. Deploy any affected implementations and their factories on new EVM chains as soon as possible.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Vectorized | solady | 0.0.125 to before 0.1.24 | 0.1.24 | Patch available | CNA |
- solady VendorVectorized Affected 0.0.125 to before 0.1.24 Fixed in 0.1.24 Patch available CNA
Remediation
- Fix · CNA solady (Vectorized) Fixed in 0.1.24
Timeline
- 2026-10-02 Threatist record created from CVE-2025-53638
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences