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CVE-2026-72776— AgenticSeek Unauthenticated RCE via /query API Endpoint

Quick assessment

Affected
Fosowl AgenticSeek
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Martin Legrand AgenticSeek是Martin Legrand个人开发者的一款智能化的搜索代理工具。 Martin Legrand AgenticSeek 2.41.1及之前版本存在授权问题漏洞，该漏洞源于未受保护的POST /query API端点，攻击者可通过提交特制查询触发BashInterpreter执行任意命令，导致远程代码执行。

CVSS 9.8 · Critical EPSS 1.10% · P65

Affected Version Matrix 1

VendorProduct Version RangeStatus
Fosowl AgenticSeek < f1eb2cfc721f8a21dd16a8b048a9ca89f3259f6f affected
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I. Basic Information for CVE-2026-72776

Vulnerability Information
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Vulnerability Title
AgenticSeek Unauthenticated RCE via /query API Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
AgenticSeek (commit fc242c7) contains an unauthenticated remote code execution vulnerability that allows any network-adjacent attacker to execute arbitrary commands by submitting crafted queries to the unprotected POST /query API endpoint bound to 0.0.0.0:7777 with wildcard CORS. Attackers can send unauthenticated HTTP requests that cause the autonomous agent to generate and execute shell commands through BashInterpreter using subprocess.Popen with shell=True and safety=False, bypassing the incomplete command blocklist to achieve full host-level code execution.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Martin Legrand AgenticSeek 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Martin Legrand AgenticSeek是Martin Legrand个人开发者的一款智能化的搜索代理工具。 Martin Legrand AgenticSeek 2.41.1及之前版本存在授权问题漏洞，该漏洞源于未受保护的POST /query API端点，攻击者可通过提交特制查询触发BashInterpreter执行任意命令，导致远程代码执行。
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

Vendor Product Affected Versions CPE Subscribe
Fosowl AgenticSeek 0 ~ f1eb2cfc721f8a21dd16a8b048a9ca89f3259f6f -

II. Public POCs for CVE-2026-72776

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 6872 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
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III. Intelligence Information for CVE-2026-72776

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Patches & Fixes for CVE-2026-72776 (1)

Vendor Advisories for CVE-2026-72776 (1)

News Coverage for CVE-2026-72776 (1)

IV. Related Vulnerabilities

Same product: AgenticSeek
Same vendor: Fosowl
Same weakness: CWE-306

V. Comments for CVE-2026-72776

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