CVE-2026-108751 modu-ai CVE debrief

Who should care

MoAI-ADK users and administrators should assess exposure and prioritize remediation. The vulnerability has a medium severity and requires immediate attention. The vulnerability can be exploited by committing a symlink such as .claude/settings.json.moai-tmp so atomicWriteFile truncates and overwrites victim-writable files with MoAI template content.

Why it matters

CVE-2026-108751 is a medium-severity vulnerability in MoAI-ADK that allows malicious repositories to overwrite files outside the project. MoAI-ADK users and administrators should assess exposure and prioritize remediation.

• Verify MoAI-ADK version and configuration
• Assess exposure to malicious repositories
• Prioritize remediation for affected versions

Technical summary

The MoAI-ADK through 3.1.2 contains an improper link resolution vulnerability in the moai init template deployer. This allows malicious repositories to overwrite files outside the project via a symlinked .moai-tmp staging path. Attackers can commit a symlink such as .claude/settings.json.moai-tmp so atomicWriteFile truncates and overwrites victim-writable files with MoAI template content. The vulnerability has a medium severity and requires immediate attention from MoAI-ADK users and administrators. The CVE record and source item provide details on the vulnerability, but limited information is available on exploitation or impact.

Defensive priority

Assess exposure and prioritize remediation for MoAI-ADK deployments.

Recommended defensive actions

• Assess MoAI-ADK deployments for exposure
• Prioritize remediation for affected versions
• Verify vendor-provided remediation
• 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 source item provide details on the vulnerability, but limited information is available on exploitation or impact. The vulnerability has a CVSS score of 4.8 and a medium severity. The MoAI-ADK through 3.1.2 contains an improper link resolution vulnerability in the moai init template deployer. This allows malicious repositories to overwrite files outside the project via a symlinked .moai-tmp staging path. The vulnerability can be exploited by committing a symlink such as .claude/settings.json.moai-tmp so atomicWrite

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.