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DeepSeek is an artificial intelligence company and research organization that develops large language models, AI assistants, model services, and developer-oriented tools. Its offerings are delivered through web services, applications, APIs, and the DeepSeek Harness environment for individual users, developers, and organizations.
As of 11/08/2026, DeepSeek recorded 4 security vulnerabilities in the last 90 days across 3 products, including 1 rated High or above and 0 known exploited vulnerabilities (KEV) that should be prioritized for immediate remediation.
Over the last 90 days, Harness had the most security vulnerabilities in the DeepSeek ecosystem, with 2 vulnerabilities—approximately 50% of the provider's total vulnerabilities during this period.
CyStack VulnScan continuously discovers assets, validates vulnerabilities, and helps security teams prioritize remediation across the organization.
CVE-2026-116368DeepSeek Harness Browser Auth browser-auth.ts improper authorizationCVE-2026-116367DeepSeek Harness sandbox.ts createContextCVE-2026-101132DeepSeek deepseek-harness Bundle Patch profile.ts loadProfile path traversalCVE-2026-82533DeepSeek Harness < 0.1.2-alpha.1 Authentication Bypass via Host Header Spoofing| Vulnerability | Exploitation status | Fix | Affected product | Published | Severity |
|---|---|---|---|---|---|
CVE-2026-116368DeepSeek Harness Browser Auth browser-auth.ts improper authorization | Exploitation statusNot exploited | FixNo | Affected productHarness | Published10/26/2026 | SeverityMedium |
CVE-2026-116367DeepSeek Harness sandbox.ts createContext | Exploitation statusActively exploited | FixNo | Affected productHarness | Published10/26/2026 | |
CVE-2026-101132DeepSeek deepseek-harness Bundle Patch profile.ts loadProfile path traversal | Exploitation statusActively exploited | FixNo | Affected productdeepseek-harness | Published | |
CVE-2026-82533DeepSeek Harness < 0.1.2-alpha.1 Authentication Bypass via Host Header Spoofing | Exploitation statusActively exploited | FixYes | Affected productDeepSeek Harness |
4 Results | Page 1 of 1
| SeverityMedium |
| SeverityLow |
| SeverityCritical |