Riskcovery

CVE-2026-43992

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

State
Published
Severity
9.8 Critical
Published
May 12, 2026
Updated
May 13, 2026
Reserved
May 4, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.19.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HGitHub_M

Weaknesses

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-312 Cleartext Storage of Sensitive Information
  • CWE-522 Insufficiently Protected Credentials
  • CWE-532 Insertion of Sensitive Information into Log File

Affected Products

ProductVersions
junoclawDragonmonk111
  • < v0.x.y-security-1Affected

References

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