Critical

Cosmos EVM Flaw Exploited After Cosmos Labs Knew Every Blockchain Running It Was Vulnerable

The Hacker News

August 28, 2026 at 8:38 PM

Actively Exploited

Overview

Cosmos Labs has alerted users about a serious flaw in the Cosmos EVM module that allowed attackers to drain funds from six blockchains between August 20 and August 25, 2026. The vulnerability, identified as GHSA-7g4w-cg88-2, is classified as Critical, yet it lacks a CVE identifier or CVSS score, which raises concerns about its management. This situation has left multiple blockchains at risk, as they were all vulnerable due to this shared module. The exploitation of this flaw not only resulted in financial losses but also poses broader implications for the security and trustworthiness of blockchain technologies. Users and developers on these affected blockchains need to be vigilant and consider taking immediate steps to safeguard their assets.

Key Takeaways

Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
Affected Systems: Cosmos EVM module affecting six blockchains
Timeline: Newly disclosed

Original Article Summary

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, is rated Critical by Cosmos Labs and was published without a CVE identifier, a weakness classification, or a CVSS score. Affected versions are =

Impact

Cosmos EVM module affecting six blockchains

Exploitation Status

This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.

Timeline

Newly disclosed

Remediation

Not specified

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to CVE, Vulnerability, Critical.

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