CVE-2026-43992 — JunoClaw: MCP write tools exposed raw BIP-39 mnemonic as a tool-call parameter
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_…
Published: 2026-05-12 · CVSS: 9.8 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7