deepseek-ai deepseek-harness up to 0.1.1-rc.2 dsh-workflow-worker-thread agent behavioral workflow

Summaryinfo

A vulnerability described as problematic has been identified in deepseek-ai deepseek-harness up to 0.1.1-rc.2. This impacts the function agent of the component dsh-workflow-worker-thread. The manipulation results in behavioral workflow. This vulnerability was named CVE-2026-108789. The attack may be performed from remote. In addition, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability, which was classified as problematic, was found in deepseek-ai deepseek-harness up to 0.1.1-rc.2. Affected is the function agent of the component dsh-workflow-worker-thread. The manipulation with an unknown input leads to a behavioral workflow vulnerability. CWE is classifying the issue as CWE-841. The product supports a session in which more than one behavior must be performed by an actor, but it does not properly ensure that the actor performs the behaviors in the required sequence. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-108789. The exploitability is told to be easy. It is possible to launch the attack remotely. Successful exploitation requires user interaction by the victim. Technical details and a public exploit are known.

The exploit is shared for download at mcniyfj5bw9b.feishu.cn. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Artificial Intelligence Software

Vendor

• deepseek-ai

Name

• deepseek-harness

Version

• 0.1.1-rc.0
• 0.1.1-rc.1
• 0.1.1-rc.2

Website

• Product: https://github.com/deepseek-ai/deepseek-harness/

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Accepted

• Submit #959699: 杭州深度求索人工智能基础技术研究有限公司 DeepSeek Harness 0.1.1-rc.2 逻辑缺陷 (by ShiyuFan_BinYuan)

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