CVE-2026-116368— DeepSeek Harness Browser Auth browser-auth.ts improper authorization

Quick assessment

Affected

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 0.2.0-rc.2 及以下版本中存在一个安全漏洞。该问题影响组件"Browser Auth"中文件的某些未知处理逻辑，导致授权机制失效（不当授权）。攻击者可远程发起此类攻击。厂商在披露初期即被联系，但至今未作任何回应。

CVSS 7.3 · High EPSS 0.58% · P48 Updated Oct 27, 2026

Possible ATT&CK Techniques 2 AI

T1068 · Exploitation for Privilege Escalation T1190 · Exploit Public-Facing Application

Affected Version Matrix 3

Vendor	Product	Version Range	Status
DeepSeek	Harness	`0.2.0-rc.0`	affected
		`0.2.0-rc.1`	affected
		`0.2.0-rc.2`	affected

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Vulnerability Information

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Vulnerability Title

DeepSeek Harness Browser Auth browser-auth.ts improper authorization

Source: CVE Program / CVE List V5

Vulnerability Description

A vulnerability was determined in DeepSeek Harness up to 0.2.0-rc.2. This issue affects some unknown processing of the file packages/client/connection/src/browser-auth.ts of the component Browser Auth. This manipulation causes improper authorization. The attack can be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Source: CVE Program / CVE List V5

Vulnerability Type

授权机制不恰当

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
DeepSeek	Harness	0.2.0-rc.0	`cpe:2.3:a:deepseek:harness::::::::`

II. Public POCs for CVE-2026-116368

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-116368

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https://www.cve.org/CVERecord?id=CVE-2026-116368

IV. Related Vulnerabilities

Same product: Harness

Same vendor: DeepSeek

Same weakness: CWE-285