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Vulnerability · Published Oct 12, 2026 · Assigned by VulDB

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

Medium 5.5

In plain English

A medium-severity security flaw in deepseek-harness from deepseek-ai. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 92.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official 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 (as reported)

VendorProductVersions
deepseek-ai deepseek-harness 0.1.1-rc.00.1.1-rc.10.1.1-rc.2

Weakness: CWE-841, CWE-840 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References