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CVE-2026-43991— JunoClaw: plugin-shell shell-injection bypass via substring blocklist

CVSS 8.4 · High EPSS 0.03% · P7

Affected Version Matrix 1

VendorProductVersion RangeStatus
Dragonmonk111junoclaw< v0.x.y-security-1affected
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I. Basic Information for CVE-2026-43991

Vulnerability Information
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Vulnerability Title
JunoClaw: plugin-shell shell-injection bypass via substring blocklist
Source: NVD (National Vulnerability Database)
Vulnerability Description
JunoClaw is an agentic AI platform built on Juno Network. Prior to 0.x.y-security-1, substring-based blocklist in plugin-shell's command-safety check could be bypassed by adversarial argument constructions, allowing unauthorized command execution on the host when combined with the companion advisory. Pre-patch, the check was applied to the raw command string rather than the parsed first token. This vulnerability is fixed in 0.x.y-security-1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
JunoClaw 操作系统命令注入漏洞
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之前版本存在操作系统命令注入漏洞，该漏洞源于plugin-shell命令安全检查中的子字符串黑名单可被对抗性参数构造绕过，可能导致未授权命令执行。
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

VendorProductAffected VersionsCPESubscribe
Dragonmonk111junoclaw < v0.x.y-security-1 -

II. Public POCs for CVE-2026-43991

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 14888 chars
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III. Intelligence Information for CVE-2026-43991

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Same Patch Batch · Dragonmonk111 · 2026-05-12 · 5 CVEs total

CVE-2026-439929.8 CRITICALJunoClaw: MCP write tools exposed raw BIP-39 mnemonic as a tool-call parameter
CVE-2026-439898.5 HIGHJunoClaw: upload_wasm accepted arbitrary filesystem paths without validation
CVE-2026-439908.4 HIGHJunoClaw: plugin-shell shell-metacharacter injection via shell wrapper
CVE-2026-439938.2 HIGHJunoClaw: SSRF in WAVS computeDataVerify allows cloud-metadata and internal-service access

IV. Related Vulnerabilities

Same product: junoclaw
Same vendor: Dragonmonk111
Same weakness: CWE-78

V. Comments for CVE-2026-43991

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