CVE-2026-43992— JunoClaw: MCP write tools exposed raw BIP-39 mnemonic as a tool-call parameter
Possible ATT&CK Techniques 1AI
T1059 · Command and Scripting InterpreterAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Dragonmonk111 | junoclaw | < v0.x.y-security-1 | affected |
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I. Basic Information for CVE-2026-43992
Vulnerability Information
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Vulnerability Title
JunoClaw: MCP write tools exposed raw BIP-39 mnemonic as a tool-call parameter
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
JunoClaw 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
JunoClaw是Dragonmonk111个人开发者的一个基于区块链的去中心化AI代理平台。 JunoClaw 0.x.y-security-1之前版本存在信息泄露漏洞，该漏洞源于每个MCP写入工具接受助记词作为显式工具调用参数，可能导致BIP-39种子暴露在传输、日志或遥测表面。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Dragonmonk111 | junoclaw | < v0.x.y-security-1 | - |
II. Public POCs for CVE-2026-43992
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
Qwen3.6-35B-A3B · 8447 chars
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III. Intelligence Information for CVE-2026-43992
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- https://github.com/Dragonmonk111/junoclaw/commit/339701ex_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-43992
Same Patch Batch · Dragonmonk111 · 2026-05-12 · 5 CVEs total
| CVE-2026-43989 | 8.5 HIGH | JunoClaw: upload_wasm accepted arbitrary filesystem paths without validation |
| CVE-2026-43991 | 8.4 HIGH | JunoClaw: plugin-shell shell-injection bypass via substring blocklist |
| CVE-2026-43990 | 8.4 HIGH | JunoClaw: plugin-shell shell-metacharacter injection via shell wrapper |
| CVE-2026-43993 | 8.2 HIGH | JunoClaw: SSRF in WAVS computeDataVerify allows cloud-metadata and internal-service access |
IV. Related Vulnerabilities
Same product: junoclaw
Same vendor: Dragonmonk111
Same weakness: CWE-200
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V. Comments for CVE-2026-43992
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