CVE-2026-116368
Received Received - Intake

Improper Authorization in DeepSeek Harness Browser Auth

Publication date: 2026-10-26

Last updated on: 2026-10-26

Assigner: VulDB

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.

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Meta Information

Published
2026-10-26
Last Modified
2026-10-26
Generated
2026-10-26
AI Q&A
2026-10-26
EPSS Evaluated
N/A
NVD
CVE-2026-116368
EUVD
EUVD-2026-109920

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
DeepSeek Harness 0.2.0-rc.0
DeepSeek Harness 0.2.0-rc.1
DeepSeek Harness 0.2.0-rc.2

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-285 The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
CWE-266 A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.

Attack-Flow Graph

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Executive Summary

This vulnerability is an improper authorization issue in DeepSeek Harness up to version 0.2.0-rc.2. It exists in the file packages/client/connection/src/browser-auth.ts and allows remote attackers to bypass authorization mechanisms. The vendor did not respond to early disclosure attempts.

Impact Analysis

This vulnerability could allow unauthorized remote access to sensitive functions or data in systems using affected versions of DeepSeek Harness. Attackers might exploit it to perform actions without proper permissions, potentially leading to data breaches or system compromise.

Mitigation Strategies

Immediately update DeepSeek Harness to the latest version beyond 0.2.0-rc.2. If no update is available, disable the Browser Auth component in packages/client/connection/src/browser-auth.ts to prevent remote exploitation.

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