Cosmos Labs has warned that a critical balance-handling flaw in the shared Cosmos EVM module was exploited to drain funds from six blockchains between August 20 and August 25, 2026. The vulnerability, designated GHSA-7g4w-cg88-2cq2 and rated Critical by Cosmos Labs, was published without a CVE identifier, weakness classification, or CVSS score. Affected versions are those prior to 0.6.2. The Cosmos SDK's EVM module, responsible for balance handling across interconnected blockchains, is the locus of the flaw. Specific blockchain project names and exact exploitation mechanics have not been fully disclosed in available reporting.

What should defenders do?

Organizations running the Cosmos EVM module should update to version 0.6.2 or later immediately. Cosmos Labs advisory GHSA-7g4w-cg88-2cq2 provides guidance on patching and mitigation. Due to the absence of a CVE identifier and CVSS score, teams should monitor official Cosmos Labs channels for additional details and verification of the affected version range.

criticalVulnerability

Critical Balance-Handling Flaw Exploited in Cosmos EVM Module, Funds Drained Across Six Blockchains

Cosmos Labs advisory GHSA-7g4w-cg88-2cq2 identifies vulnerability affecting EVM module; exploitation reported August 20-25, 2026

CyberIntel DeskPublished about 1 month agoUpdated less than a minute ago1 min read

Critical Balance-Handling Flaw Exploited in Cosmos EVM Module, Funds Drained Across Six Blockchains

Key Takeaways

A critical balance-handling flaw in the Cosmos EVM module was exploited between August 20 and August 25, 2026.
Funds were drained from six blockchains; the exact projects and dollar amount remain unspecified in reporting.
The vulnerability is tracked as GHSA-7g4w-cg88-2cq2 and rated Critical by Cosmos Labs.

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