---
id: CVE-2026-116368
title: DeepSeek Harness Browser Auth browser-auth.ts improper authorization
summary: >-
  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 a…
severity: high
cvss: 7.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:C'
cvssSource: cna
cwe:
  - CWE-285
  - CWE-266
vendor: DeepSeek
product: Harness
affected:
  - Harness 0.2.0-rc.0
  - Harness 0.2.0-rc.1
  - Harness 0.2.0-rc.2
published: '2026-10-26'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T15:45:16.223Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-116368'
references:
  - url: 'https://vuldb.com/vuln/426332'
    label: >-
      VDB-426332 | DeepSeek Harness Browser Auth browser-auth.ts improper
      authorization
  - url: 'https://vuldb.com/vuln/426332/cti'
    label: 'VDB-426332 | CTI Indicators (IOB, IOC, TTP, IOA)'
  - url: 'https://vuldb.com/cve/CVE-2026-116368'
    label: CVE-2026-116368 | CVE Analysis and Report
  - url: 'https://vuldb.com/submit/1012891'
    label: >-
      Submit #1012891 | DeepSeek deepseek-harness（@deepseek-ai/dsh，DeepSeek
      Harness） 0.2.0-rc.2（verified in source and reproduced on the live
      instance）  Authentication Bypass
tags:
  - cve.org
ingestedAt: '2026-10-26T16:31:40.066Z'
---

## Overview

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.

## Affected

- `Harness 0.2.0-rc.0`
- `Harness 0.2.0-rc.1`
- `Harness 0.2.0-rc.2`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.