Vulnerability in Deepseek-Ai Deepseek-Harness
CVE-2026-101102
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Deepseek-Ai Deepseek-Harness — versions 0.1.0-rc.0, 0.1.0-rc.1, 0.1.0-rc.2
Weakness classification (CWE)
References
- vuldb.com/cve/CVE-2026-101102 (third-party-advisory)
- vuldb.com/submit/935737 (third-party-advisory)
- vuldb.com/submit/937812 (third-party-advisory)
- vuldb.com/vuln/410977 (technical-description, vdb-entry)
- vuldb.com/vuln/410977/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-101102?
- CVE-2026-101102 is a medium-severity vulnerability in Deepseek-Ai Deepseek-Harness, classified under CWE-264. CVSS score: 6.3/10. Published 2026-09-28.
- How severe is CVE-2026-101102?
- Medium severity. CVSS v3 base score is 6.3 out of 10.