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Critical · 9.8 CVE-2026-43992 EUVD-2026-29541

JunoClaw: MCP write tools exposed raw BIP-39 mnemonic as a tool-call parameter

Published May 12, 2026 · Updated May 13, 2026 · Assigned by GitHub_M

Description

JunoClaw is an agentic AI platform built on Juno Network. Prior to 0.x.y-security-1, every MCP write tool (send_tokens, execute_contract, instantiate_contract, upload_wasm, ibc_transfer, etc.) accepted 'mnemonic: string' as an explicit tool-call parameter. The BIP-39 seed was consequently embedded in the LLM tool-call JSON, exposing it to any transport, log, or telemetry surface in the path between the LLM provider and the MCP process. This vulnerability is fixed in 0.x.y-security-1.

Affected products

VendorProductAffectedFixed
Dragonmonk111 junoclaw < v0.x.y-security-1 —

References