MoAI-ADK through 3.1.2 Symlink Following via moai init Template Deployer

Advisories

MoAI-ADK through 3.1.2 Symlink Following via moai init Template Deployer

severity: medium
date: 10/11/2026
Affecting: moai-adk <= 3.1.2
CVE: CVE-2026-108751
CWE: CWE-59 Improper Link Resolution Before File Access ('Link Following')
CVSS: 4.8
CVSS V4 Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
References: https://hackmd.io/@haind/moai-adk-template-staging-symlink-overwrite
https://github.com/modu-ai/moai-adk/blob/4b2f203feda9c2cb6d7771969f4ec966842c8732/internal/template/deployer.go#L19-L32
https://github.com/modu-ai/moai-adk/blob/4b2f203feda9c2cb6d7771969f4ec966842c8732/internal/template/deployer.go#L160-L203
https://github.com/modu-ai/moai-adk
Credit: HaiND from the Post and Telecommunication Institute of Technology
Description: MoAI-ADK through 3.1.2 contains an improper link resolution vulnerability in the moai init template deployer that 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.

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