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CVE-2026-109437— Cognition < 0.13.0 Unauthenticated RCE via Local Shell Backend

Quick assessment

Affected
CognicellAI Cognition
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cognition 0.13.0 之前的版本存在未认证的远程代码执行漏洞。该漏洞源于其代理沙箱后端默认配置为本地执行模式，且其 REST/SSE API 未启用任何身份验证机制。攻击者可在无需凭证的情况下，通过向 POST /sessions 发送请求创建会话，再向 POST /sessions/{id}/messages 发送消息，从而触发 Deep Agents 的 ReAct 循环，经由本地 Shell 后端执行由攻击者控制的 Shell 命令，最终导致以服务器进程权限执行远程代码。

CVSS 9.8 · Critical

Affected Version Matrix 1

VendorProduct Version RangeStatus
CognicellAI Cognition < 0.13.0 affected
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I. Basic Information for CVE-2026-109437

Vulnerability Information
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Vulnerability Title
Cognition < 0.13.0 Unauthenticated RCE via Local Shell Backend
Source: CVE Program / CVE List V5
Vulnerability Description
Cognition before 0.13.0 contains an unauthenticated remote code execution vulnerability due to defaulting its agent sandbox backend to local execution and shipping no authentication on its REST/SSE API. Attackers can create a session via POST /sessions and post a message via POST /sessions/{id}/messages without credentials, causing the Deep Agents ReAct loop to run attacker-directed shell commands through the local shell backend, resulting in remote code execution as the server process.
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
不安全的默认资源初始化
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
CognicellAI Cognition 0 ~ 0.13.0 -

II. Public POCs for CVE-2026-109437

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-109437

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Vendor Advisories for CVE-2026-109437 (1)

Other References for CVE-2026-109437 (1)

IV. Related Vulnerabilities

Same weakness: CWE-1188

V. Comments for CVE-2026-109437

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