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CVE-2026-82033— DeepSeek Harness Unauthenticated RPC Command Execution

Quick assessment

Affected
deepseek-ai deepseek-harness
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.

DeepSeek Harness 在 0.1.2-alpha.2 版本之前(特别是提交 3e24087)存在身份验证缺失漏洞,影响其 Web 配置文件的 HTTP 和 WebSocket RPC 控制平面。该漏洞允许任何本地进程(包括以不同操作系统用户身份运行的进程)访问未经验证的会话方法,例如 和 。 攻击者可调用 触发代理的 Bash 和文件系统工具,利用受害者配置的模型凭据以受害者用户身份执行任意命令;同时可拦截事件多路复用(event mux)流上的实时会话流量和日志;并可通过向 接口发送请求,仅匹配在未经

CVSS 8.4 · High

Affected Version Matrix 2

VendorProduct Version RangeStatus
deepseek-ai deepseek-harness < 0.1.2-alpha.2 affected
≤ 3e24087bfaeabe40b58ba2f7b936895b8f93fe27 affected
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I. Basic Information for CVE-2026-82033

Vulnerability Information

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Vulnerability Title
DeepSeek Harness Unauthenticated RPC Command Execution
Source: CVE Program / CVE List V5
Vulnerability Description
DeepSeek Harness prior to 0.1.2-alpha.2, and specifically commit 3e24087, contains a missing authentication vulnerability in its web profile HTTP and WebSocket RPC control plane, allowing any local process, including those running as a different OS user, to reach unauthenticated session methods such as session.create and session.prompt. Attackers can invoke session.prompt to trigger the agent's bash and filesystem tools, achieve arbitrary command execution as the victim user using their configured model credentials, intercept live session traffic and logs over the event mux stream, and bypass human tool-approval checks via POST /api/respond by matching only rpcId, approvalId, and sessionId values broadcast over the ungated stream.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/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

Affected Products

Vendor Product Affected Versions CPE Subscribe
deepseek-ai deepseek-harness 0 ~ 0.1.2-alpha.2 -

II. Public POCs for CVE-2026-82033

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III. Intelligence Information for CVE-2026-82033

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Other References for CVE-2026-82033 (2)

IV. Related Vulnerabilities