CVE-2026-39309
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk7th percentile - higher than 7% of all known CVEs
Summary
Trilium Notes versions 0.102.1 and prior contain a vulnerability to TCC bypass via prompt spoofing in the Electron configuration. A local attacker can run malicious code under the trusted app's identity using the RunAsNode flag to execute arbitrary system commands, leading to misleading macOS permission prompts and access to protected resources.
Risk Assessment
An attacker can gain access to protected macOS resources such as camera, microphone, screen, and folders like ~/Documents and ~/Downloads, undermining the system's security model.
Recommendation
Update Trilium Notes to version 0.102.2 or later, which contains the fix.
Original NVD description (English source)
Trilium Notes is a cross-platform, hierarchical note taking application focused on building large personal knowledge bases. In versions 0.102.1 and prior, the Electron configuration is vulnerable to TCC Bypass via Prompt Spoofing, allowing local attackers to trigger misleading macOS permission prompts by running malicious code under the identity of the trusted app. The root cause is that the RunAsNode fuse allows launching the app in a special Node.js mode using -e to execute arbitrary system commands with Trilium Notes's permissions and identity. An attacker can leverage this through a subprocess to request any sensitive permissions, such as access to hardware (camera, microphone) and TCC-protected files, causing the TCC system prompt to appear as if the request came from Trilium rather than the attacker's code, because macOS treats the subprocess as part of the parent application. Exploitation allows access to TCC-protected resources like the screen, camera, microphone, and folders such as ~/Documents and ~/Downloads, undermining macOS's security model and UI integrity through social engineering. This issue has been fixed in version 0.102.2.