deepseek-ai deepseek-harness up to 0.1.0-rc.7 Code Mode Sandbox run_code sandbox

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3$0-$5k2.31+

Summaryinfo

A vulnerability was found in deepseek-ai deepseek-harness up to 0.1.0-rc.7. It has been rated as critical. The affected element is the function run_code of the component Code Mode Sandbox. This manipulation causes sandbox. This vulnerability is tracked as CVE-2026-101102. The attack is possible to be carried out remotely. No exploit exists. 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.

Detailsinfo

A vulnerability classified as critical was found in deepseek-ai deepseek-harness up to 0.1.0-rc.7. Affected by this vulnerability is the function run_code of the component Code Mode Sandbox. The manipulation with an unknown input leads to a sandbox vulnerability. The CWE definition for the vulnerability is CWE-265. As an impact it is known to affect confidentiality, integrity, and availability.

This vulnerability is known as CVE-2026-101102. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/28/2026). MITRE ATT&CK project uses the attack technique T1611 for this issue.

The vendor was contacted early about this disclosure but did not respond in any way. The vendor's own code, SAFETY.md, and design notes all explicitly state the worker is "containment, not a security boundary".

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Sandbox
CWE: CWE-265 / CWE-264
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

09/28/2026 Advisory disclosed
09/28/2026 +0 days VulDB entry created
09/28/2026 +0 days VulDB entry last update

Sourcesinfo

Status: Confirmed

CVE: CVE-2026-101102 (🔒)
GCVE (CVE): GCVE-0-2026-101102
GCVE (VulDB): GCVE-100-410977

Entryinfo

Created: 09/28/2026 05:04
Changes: 09/28/2026 05:04 (53)
Complete: 🔍
Submitter: rockmelodeis
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #935737: deepseek-ai deepseek-harness dsh-v0.1.0-rc.7 DeepSeek Harness `run_code` (Code Mode) executes model-written T (by rockmelodeis)

Duplicate

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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