All vulnerabilities
CVE-2026-101102

deepseek-ai deepseek-harness Code Mode Sandbox run_code sandbox

deepseek-ai deepseek-harness
Open in ThreatlineRecord JSON
CVSS
5.3Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.22%Chance of exploitation activity in the next 30 days, higher than 11% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published28 Sep 2026Updated 1 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Description

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.

Text from CVE List

Affected versions 8

  • deepseek-harnessaffected: 0.1.0-rc.0CVE List
  • deepseek-harnessaffected: 0.1.0-rc.1CVE List
  • deepseek-harnessaffected: 0.1.0-rc.2CVE List
  • deepseek-harnessaffected: 0.1.0-rc.3CVE List
  • deepseek-harnessaffected: 0.1.0-rc.4CVE List
  • deepseek-harnessaffected: 0.1.0-rc.5CVE List
  • deepseek-harnessaffected: 0.1.0-rc.6CVE List
  • deepseek-harnessaffected: 0.1.0-rc.7CVE List

References 5