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CVE-2026-101102

deepseek-ai deepseek-harness Code Mode Sandbox run_code sandbox

CVSS 4.0 5.3 MEDIUMCVSS 3.1 6.3 MEDIUMCVSS 3.0 6.3 MEDIUMCVSS 2.0 6.5 Check source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-101102

Published

A vulnerability was found in deepseek-ai deepseek-harness up to 0.1.0-rc.7. Impacted is the function run_code of the component Code Mode Sandbox. The manipulation results in sandbox issue. The attack can be executed remotely. The vendor's own code, SAFETY.md, and design notes all explicitly state the worker is "containment, not a security boundary". The vendor was contacted early about this disclosure but did not respond in any way.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-101102

Published

deepseek-harness

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "deepseek-ai",
                    "product": "deepseek-harness",
                    "versions": [
                        {
                            "version": "0.1.0-rc.0",
                            "status": "affected"
                        },
                        {
                            "version": "0.1.0-rc.1",
                            "status": "affected"
                        },
                        {
                            "version": "0.1.0-rc.2",
                            "status": "affected"
                        },
                        {
                            "version": "0.1.0-rc.3",
                            "status": "affected"
                        },
                        {
                            "version": "0.1.0-rc.4",
                            "status": "affected"
                        },
                        {
                            "version": "0.1.0-rc.5",
                            "status": "affected"
                        },
                        {
                            "version": "0.1.0-rc.6",
                            "status": "affected"
                        },
                        {
                            "version": "0.1.0-rc.7",
                            "status": "affected"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:a:deepseek-ai:deepseek-harness:*:*:*:*:*:*:*:*"
                    ],
                    "modules": [
                        "Code Mode Sandbox"
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON