Description
TUUI is a desktop MCP client designed as a tool unitary utility integration. Prior to 1.3.4, a critical Remote Code Execution (RCE) vulnerability exists in Tuui due to an unsafe Cross-Site Scripting (XSS) flaw in the Markdown rendering component. Tuui allows the execution of arbitrary JavaScript within ECharts code blocks. Combined with an exposed IPC interface that allows spawning processes, an attacker can execute arbitrary system commands on the victim's machine simply by having them view a malicious Markdown message. This vulnerability is fixed in 1.3.4.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_confirm
https://github.com/AI-QL/tuui/security/advisories/GHSA-qjhq-rgmr-6c3g
Patch x_refsource_misc
https://github.com/AI-QL/tuui/commit/f673fa5b4d76e8236c7d9506d0727875cfa79cc1
Release Notes x_refsource_misc
https://github.com/AI-QL/tuui/releases/tag/v1.3.4
Scores
CVSS v3
9.6
EPSS
0.0043
EPSS Percentile
34.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-79
CWE-94
Status
published
Products (2)
AI-QL/tuui
< 1.3.4
aiql/tuui
< 1.3.4
Published
Dec 05, 2025
Tracked Since
Feb 18, 2026