CVE-2026-43992 | THREATINT

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.

PUBLISHED Reserved 2026-05-04 | Published 2026-05-12 | Updated 2026-05-13 | Assigner GitHub_M

CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

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

Product status

< v0.x.y-security-1

affected

References

github.com/...noclaw/security/advisories/GHSA-j75q-8xvm-6c48

github.com/Dragonmonk111/junoclaw/commit/339701e

github.com/...onk111/junoclaw/releases/tag/v0.x.y-security-1

cve.org (CVE-2026-43992)

nvd.nist.gov (CVE-2026-43992)

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