CVE-2026-101078: Improper Isolation or Compartmentalization in deepseek-ai deepseek-harness
A vulnerability has been found in deepseek-ai deepseek-harness up to 0.1.7-rc.2. Affected is an unknown function of the file packages/sandbox/sandbox-local/src/profiles.ts of the component Landlock Backend. Such manipulation leads to improper isolation or compartmentalization. The attack must be carried out locally. The exploit has been disclosed to the public and may be used. It is advisable to implement a patch to correct this issue. The vendor was contacted early about this disclosure but did not respond in any way.
AI Analysis
Technical Summary
This vulnerability in deepseek-ai deepseek-harness (versions 0.1.7-rc.0, 0.1.7-rc.1, and 0.1.7-rc.2) affects an unknown function in the Landlock Backend component, causing improper isolation or compartmentalization. The flaw could allow a local attacker to bypass intended isolation mechanisms. The issue is publicly disclosed, but no vendor response or patch is available at this time.
Potential Impact
The vulnerability allows local attackers to manipulate the sandbox isolation, potentially leading to unauthorized access or actions within the system due to improper compartmentalization. The CVSS score of 4.8 indicates a medium impact, with limited attack vector (local), low complexity, and no user interaction required.
Mitigation Recommendations
No official patch or remediation is currently available as the vendor has not responded to the disclosure. It is advisable to monitor vendor communications for updates and apply any future patches promptly. Until then, restrict local access to trusted users only to reduce risk.
CVE-2026-101078: Improper Isolation or Compartmentalization in deepseek-ai deepseek-harness
Description
A vulnerability has been found in deepseek-ai deepseek-harness up to 0.1.7-rc.2. Affected is an unknown function of the file packages/sandbox/sandbox-local/src/profiles.ts of the component Landlock Backend. Such manipulation leads to improper isolation or compartmentalization. The attack must be carried out locally. The exploit has been disclosed to the public and may be used. It is advisable to implement a patch to correct this issue. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS v4.0
Score 4.8medium
Affected software
deepseek-ai
deepseek-harness
pkg:github/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 in deepseek-ai deepseek-harness (versions 0.1.7-rc.0, 0.1.7-rc.1, and 0.1.7-rc.2) affects an unknown function in the Landlock Backend component, causing improper isolation or compartmentalization. The flaw could allow a local attacker to bypass intended isolation mechanisms. The issue is publicly disclosed, but no vendor response or patch is available at this time.
Potential Impact
The vulnerability allows local attackers to manipulate the sandbox isolation, potentially leading to unauthorized access or actions within the system due to improper compartmentalization. The CVSS score of 4.8 indicates a medium impact, with limited attack vector (local), low complexity, and no user interaction required.
Mitigation Recommendations
No official patch or remediation is currently available as the vendor has not responded to the disclosure. It is advisable to monitor vendor communications for updates and apply any future patches promptly. Until then, restrict local access to trusted users only to reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-09-27T17:53:25.620Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aba8c4ff7a7c54106e0509d
Added to database: 09/28/2026, 15:48:31 UTC
Last enriched: 09/28/2026, 16:03:06 UTC
Last updated: 09/29/2026, 02:44:49 UTC
Views: 12
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.