CVE-2026-108788 deepseek-ai CVE debrief

Who should care

Defenders responsible for local host environments using deepseek-ai deepseek-harness should assess exposure and verify the affected version. This includes operators, platform administrators, vulnerability management teams, and security teams who need to prioritize verifying the affected version and assessing exposure in local host environments.

Why it matters

Defenders should prioritize verifying the affected version and assessing exposure in local host environments using deepseek-ai deepseek-harness.

• Verify the version of deepseek-ai deepseek-harness in use
• Assess exposure in local host environments
• Monitor for potential sandbox issues

Technical summary

The vulnerability is in the function spawn of the component Sandbox in deepseek-ai deepseek-harness up to 0.1.1-rc.2. A manipulation of the argument Profile can lead to a sandbox issue. This vulnerability affects local host environments using deepseek-ai deepseek-harness. Defenders should prioritize verifying the affected version and assessing exposure in local host environments. The exploit has been publicly disclosed and may be utilized. The CVE record and NVD entry provide limited information about the vulnerability.

Defensive priority

Defenders should prioritize verifying the affected version and assessing exposure in local host environments.

Recommended defensive actions

• Verify the version of deepseek-ai deepseek-harness in use
• Assess exposure in local host environments
• Monitor for potential sandbox issues
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. Further verification is required to determine the affected versions and potential impact. Defenders should verify the affected version and assess exposure in local host environments using deepseek-ai deepseek-harness. The exploit has been publicly disclosed and may be utilized.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.