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

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.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• VDB-426332 | DeepSeek Harness Browser Auth browser-auth.ts improper authorization vdb-entry
• VDB-426332 | CTI Indicators (IOB, IOC, TTP, IOA) signaturepermissions-required
• CVE-2026-116368 | CVE Analysis and Report third-party-advisory
• 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 third-party-advisory