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Vulnerability disclosure stories

Aug 25, 2026

Cosmos Labs faces backlash over disclosure of bug affecting four blockchains

Cosmos Labs has drawn criticism from the crypto security community over its handling of a bug disclosure in its Cosmos EVM module, which has caused issues across four blockchain networks using the module.

Aug 25, 2026·1 source
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Top claims

  • ▪KiiChain's post-mortem report cited a lack of advance notice, a failure to flag the update as critical, and delayed communication from Cosmos Labs as contributing factors to its exploit.
  • ▪Prior to Cosmos Labs' warning, the MANTRA and Nesa networks had already advised of chain halts, with no user funds reportedly affected.
  • ▪KiiChain published a post-mortem report blaming Cosmos Labs' disclosure process, calling the exploit avoidable because the security fix was published openly before chains were privately notified.

Subtopics

Blockchain interoperabilitySmart contractsCrypto

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