CVE-2026-116367

MEDIUM 6.3

DeepSeek Harness sandbox.ts createContext

CVSS Score

6.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-265 CWE-264
Vendor	deepseek
Product	harness
Published	Oct 26, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:X/RL:X/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

DeepSeek / Harness

0.1.0-rc.0 0.1.0-rc.1 0.1.0-rc.2 0.1.0-rc.3 0.1.0-rc.4 0.1.0-rc.5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/426331 vuldb.com: https://vuldb.com/vuln/426331/cti vuldb.com: https://vuldb.com/cve/CVE-2026-116367 vuldb.com: https://vuldb.com/submit/1012736

Credits

🔍 JerryGW (VulDB User) VulDB CNA Team