High severity7.5NVD Advisory· Published Dec 21, 2021· Updated Jun 17, 2026
CVE-2021-43839
CVE-2021-43839
Description
Cronos is a commercial implementation of a blockchain. In Cronos nodes running versions before v0.6.5, it is possible to take transaction fees from Cosmos SDK's FeeCollector for the current block by sending a custom crafted MsgEthereumTx. This problem has been patched in Cronos v0.6.5. There are no tested workarounds. All validator node operators are recommended to upgrade to Cronos v0.6.5 at their earliest possible convenience.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/crypto-org-chain/cronosGo | < 0.6.5 | 0.6.5 |
github.com/tharsis/ethermintGo | >= 0.8.0, < 0.10.0 | 0.10.0 |
github.com/tharsis/evmosGo | <= 0.4.2 | — |
github.com/tharsis/ethermintGo | < 0.7.3 | 0.7.3 |
Affected products
4- ghsa-coords3 versionspkg:golang/github.com/crypto-org-chain/cronospkg:golang/github.com/tharsis/ethermintpkg:golang/github.com/tharsis/evmos
< 0.6.5+ 2 more
- (no CPE)range: < 0.6.5
- (no CPE)range: >= 0.8.0, < 0.10.0
- (no CPE)range: <= 0.4.2
- Range: < 0.6.5
Patches
Vulnerability mechanics
References
5- github.com/crypto-org-chain/cronos/commit/150ef237b37ac28c8136e1c0f494932860b9ebe8nvdPatchThird Party AdvisoryWEB
- github.com/crypto-org-chain/cronos/pull/270nvdPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-f854-hpxv-cw9rghsaADVISORY
- github.com/crypto-org-chain/cronos/security/advisories/GHSA-f854-hpxv-cw9rnvdThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-43839ghsaADVISORY
News mentions
0No linked articles in our index yet.