CVE-2026-108788: Sandbox Issue in deepseek-ai deepseek-harness
Description
CVE-2026-108788 is a medium severity vulnerability in deepseek-ai deepseek-harness versions 0.1.1-rc.0, 0.1.1-rc.1, and 0.1.1-rc.2. It involves a sandbox issue in the spawn function of the Sandbox component, triggered by manipulation of the Profile argument. The vulnerability can be exploited locally and has been publicly disclosed. The vendor has not responded or provided a fix as of the publication date.
CVSS v4.0
Score 4.8medium
Affected software
deepseek-ai
deepseek-harness
pkg:npm/deepseek-ai/deepseek-harnesscpe:2.3:a:deepseek-ai:deepseek-harness:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects the deepseek-ai deepseek-harness product up to version 0.1.1-rc.2. The issue lies in the Sandbox component's spawn function, where manipulating the Profile argument can cause a sandbox security issue. The attack requires local access and does not require user interaction. The CVSS 4.0 base score is 4.8, indicating medium severity. The vulnerability has been publicly disclosed, but no official patch or vendor response is available.
Potential Impact
An attacker with local access can manipulate the Profile argument in the spawn function to bypass or compromise sandbox restrictions, potentially leading to unauthorized actions within the sandbox environment. The impact is limited by the requirement for local access and low privileges, and the overall severity is medium.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded or provided a fix, users should monitor official channels for updates. Until a fix is available, restrict local access to trusted users only and consider additional sandbox hardening measures if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-10-11T08:45:01.855Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6acc438d2cdf04f65652e332
Added to database: 10/12/2026, 02:18:53 UTC
Last enriched: 10/12/2026, 02:33:26 UTC
Last updated: 10/12/2026, 02:33:26 UTC
Views: 5
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