Evmos vulnerable to exploit of smart contract account and vesting
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-863.
Summary
Evmos is a decentralized Ethereum Virtual Machine chain on the Cosmos Network. Prior to version 19.0.0, a user can create a vesting account with a 3rd party account (EOA or contract) as funder. Then, this user can create an authorization for the contract.CallerAddress, this is the authorization checked in the code. But the funds are taken from the funder address provided in the message. Consequently, the user can fund a vesting account with a 3rd party account without its permission. The funder address can be any address, so this vulnerability can be used to drain all the accounts in the chain. The issue has been patched in version 19.0.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 |
|---|---|---|---|---|---|
| evmos | evmos | before 19.0.0 | 19.0.0 | Patch available | CNA |
| — | github.com/evmos/evmos/v18 (Go) | before 19.0.0 | 19.0.0 | Patch available | GHSA-q6hg-6m9x-5g9c |
- evmos Vendorevmos Affected before 19.0.0 Fixed in 19.0.0 Patch available CNA
- github.com/evmos/evmos/v18 (Go) Vendor— Affected before 19.0.0 Fixed in 19.0.0 Patch available GHSA-q6hg-6m9x-5g9c
Remediation
- Fix · CNA evmos (evmos) Fixed in 19.0.0
- Fix · GHSA-q6hg-6m9x-5g9c github.com/evmos/evmos/v18 (Go) Fixed in 19.0.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2024-39696
- 2026-10-03 Alias added: GHSA-q6hg-6m9x-5g9c
References
More Evmos vulnerabilities
- TI-2022-16363 Ethermint DoS through Unintended Contract Selfdestruct CVSS 3.1HIGH 8.2
- TI-2024-24680 Evmos's contract balance not updating correctly after interchain transaction CVSS 3.1HIGH 7.5
- TI-2024-21526 Evmos' transaction execution not accounting for all state transition after interaction with precompiles CVSS 3.1CRITICAL 9.1
- TI-2022-08552 Account compromise in Evmos CVSS 3.1HIGH 8.1
- TI-2024-24685 Evmos is missing precompile checks CVSS 3.1HIGH 8.1
- TI-2024-24681 Evmos allows unvested token delegations CVSS 3.1MEDIUM 5.3
Sources
- CVE-2024-39696 · CVE Program
- CVE-2024-39696 · NVD
- FIRST EPSS
- GHSA-q6hg-6m9x-5g9c · GitHub Advisory Database · CC BY 4.0
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