Is CVE-2026-116367 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-116367?

CVE-2026-116367 has a CVSS v3 severity of MEDIUM (6.3).

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CVE-2026-116367

Description

A vulnerability was found in DeepSeek Harness up to 0.1.0-rc.5. This vulnerability affects the function createContext of the file packages/extensions/cordis-host-runner/src/sandbox.ts. The manipulation results in sandbox issue. It is possible to launch the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.