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CVE-2026-61438— PraisonAI before 4.6.78 Remote Code Execution via Broken AST Sandbox

CVSS 7.3 · High EPSS 0.20% · P10

Affected Version Matrix 2

VendorProductVersion RangeStatus
MervinPraisonPraisonAI< 4.6.78affected
4.6.78unaffected
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I. Basic Information for CVE-2026-61438

Vulnerability Information
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Vulnerability Title
PraisonAI before 4.6.78 Remote Code Execution via Broken AST Sandbox
Source: CVE Program / CVE List V5
Vulnerability Description
PraisonAI before 4.6.78 contains a remote code execution vulnerability in JobWorkflowExecutor._exec_inline_python() due to insufficient AST validation of workflow script steps. Attackers can create malicious YAML workflow files with import os statements followed by os.system() calls that bypass sandbox checks and execute arbitrary OS commands with process privileges.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
Vulnerability Title
MervinPraison PraisonAI 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MervinPraison PraisonAI是MervinPraison个人开发者的 MervinPraison PraisonAI 4.6.78之前版本存在命令注入漏洞，该漏洞源于JobWorkflowExecutor._exec_inline_python()函数对工作流脚本步骤的AST验证不足，可能导致攻击者创建恶意YAML工作流文件，通过import os语句及os.system()调用绕过沙箱检查，以进程权限执行任意OS命令。
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
MervinPraisonPraisonAI 0 ~ 4.6.78 -

II. Public POCs for CVE-2026-61438

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 9740 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-61438

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Vendor Advisories for CVE-2026-61438 (2)

Same Patch Batch · MervinPraison · 2026-07-15 · 11 CVEs total

CVE-2026-614368.6 HIGHPraisonAI before 4.6.78 Missing Webhook Signature Verification
CVE-2026-614308.5 HIGHPraisonAI before 1.6.78 DNS Rebinding SSRF via web_crawl
CVE-2026-614468.4 HIGHPraisonAI before 1.6.78 Remote Code Execution via Plugin Auto-Discovery
CVE-2026-614358.2 HIGHPraisonAI before 4.6.78 Authentication Bypass via Host Header Spoofing
CVE-2026-614438.1 HIGHPraisonAI before 1.6.78 Remote Code Execution via SkillTools
CVE-2026-614337.8 HIGHPraisonAI before 4.6.78 Code Injection via API deployment generator
CVE-2026-600857.5 HIGHPraisonAI before 4.6.78 Unenforced Security Policy in Subprocess Sandbox
CVE-2026-614277.3 HIGHPraisonAI before 4.6.78 Authentication Bypass via HTTP-stream
CVE-2026-614406.5 MEDIUMPraisonAI Platform before 0.1.9 Authorization Bypass via Label Endpoints
CVE-2026-600876.1 MEDIUMPraisonAI before 1.6.78 Tool Approval Cache Bypass

IV. Related Vulnerabilities

Same product: PraisonAI
Same vendor: MervinPraison
Same weakness: CWE-78

V. Comments for CVE-2026-61438

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