What’s Vulnerable › Vulnerabilities

CVE-2026-108789: deepseek-ai deepseek-harness dsh-workflow-worker-thread agent behavioral workflow

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-12 · updated 2026-10-13
• Weakness: CWE-840

Description

A vulnerability was identified in deepseek-ai deepseek-harness up to 0.1.1-rc.2. This affects the function agent of the component dsh-workflow-worker-thread. The manipulation leads to enforcement of behavioral workflow. The attack is possible to be carried out remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• deepseek-ai deepseek-harness: 0.1.1-rc.0, 0.1.1-rc.1, 0.1.1-rc.2

References

• https://github.com/deepseek-ai/deepseek-harness/
• https://github.com/deepseek-ai/deepseek-harness/discussions/243
• https://mcniyfj5bw9b.feishu.cn/docx/M5H6d9AbioNftYxwk9CchJgGnHc
• https://vuldb.com/cve/CVE-2026-108789
• https://vuldb.com/submit/959699
• https://vuldb.com/vuln/416568
• https://vuldb.com/vuln/416568/cti

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