High severity7.5NVD Advisory· Published Feb 8, 2021· Updated Jun 17, 2026
CVE-2021-25835
CVE-2021-25835
Description
Cosmos Network Ethermint <= v0.4.0 is affected by a cross-chain transaction replay vulnerability in the EVM module. Since ethermint uses the same chainIDEpoch and signature schemes with ethereum for compatibility, a verified signature in ethereum is still valid in ethermint with the same msg content and chainIDEpoch, which enables "cross-chain transaction replay" attack.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/cosmos/ethermintGo | < 0.4.1 | 0.4.1 |
Affected products
3- Cosmos Network/Ethermintdescription
Patches
Vulnerability mechanics
References
5- github.com/cosmos/ethermint/pull/692nvdPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-x5f3-qmwj-4f84ghsaADVISORY
- github.com/cosmos/ethermint/issues/687nvdThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-25835ghsaADVISORY
- github.com/cosmos/ethermint/releases/tag/v0.4.1ghsaWEB
News mentions
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