TI-2026-70823 Aliases CVE-2026-108788 GHSA-5mvr-2xwh-9v9q

deepseek-ai deepseek-harness Sandbox spawn sandbox

LOW 21CWE-264Published 2026-10-12 · Updated 2026-10-14

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Security bypass
Confidentiality · integrity · availability: Low · Low · Low
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-264.

Summary

A vulnerability was determined in deepseek-ai deepseek-harness up to 0.1.1-rc.2. The impacted element is the function spawn of the component Sandbox. Executing a manipulation of the argument Profile can lead to sandbox issue. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00112 1st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
deepseek-ai	deepseek-harness	0.1.1-rc.0; 0.1.1-rc.1; 0.1.1-rc.2	—	No fix listed	CNA

deepseek-harness Vendordeepseek-ai Affected 0.1.1-rc.0; 0.1.1-rc.1; 0.1.1-rc.2 Fixed in — No fix listed CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:deepseek-ai:deepseek-harness::::::::	—	—	—

cpe:2.3:a:deepseek-ai:deepseek-harness:*:*:*:*:*:*:*:* Versions — — ·—

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-12 Threatist record created from CVE-2026-108788
2026-10-12 Alias added: GHSA-5mvr-2xwh-9v9q
2026-10-15 CISA SSVC decision points changed

References

Exploit 1

https://mcniyfj5bw9b.feishu.cn/docx/EMBrd1Ak3oJDFjx48F9cYH0Snnb

TI-2026-70824 deepseek-ai deepseek-harness dsh-workflow-worker-thread agent behavioral workflow CVSS 4.0MEDIUM 5.1
TI-2026-65111 deepseek-ai deepseek-harness Landlock Backend profiles.ts isolation CVSS 4.0MEDIUM 4.8
TI-2026-85128 Missing authentication in DeepSeek RPC allows command execution CVSS 4.0HIGH 8.6
TI-2026-83554 Path traversal in DeepInfer lets attackers create directories CVSS 4.0MEDIUM 6.3
TI-2026-65131 deepseek-ai deepseek-harness Code Mode Sandbox run_code sandbox CVSS 4.0MEDIUM 5.3
TI-2026-65140 deepseek-ai deepseek-harness dsh index.ts reliance on untrusted inputs in a security decision CVSS 4.0MEDIUM 4.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences