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NVD Vulnerability Details :
CVE-2026-39309
Received
More InfoOfficial Page
Source-security-advisories@github.com
View Known Exploited Vulnerability (KEV) details
Published At-20 May, 2026 | 00:16
Updated At-20 May, 2026 | 00:16

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.15.5MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Type: Secondary
Version: 3.1
Base score: 5.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-290Primarysecurity-advisories@github.com
CWE-451Primarysecurity-advisories@github.com
CWE ID: CWE-290
Type: Primary
Source: security-advisories@github.com
CWE ID: CWE-451
Type: Primary
Source: security-advisories@github.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/TriliumNext/Trilium/releases/tag/v0.102.2security-advisories@github.com
N/A
https://github.com/TriliumNext/Trilium/security/advisories/GHSA-66pm-8hvq-2wwxsecurity-advisories@github.com
N/A
Hyperlink: https://github.com/TriliumNext/Trilium/releases/tag/v0.102.2
Source: security-advisories@github.com
Resource: N/A
Hyperlink: https://github.com/TriliumNext/Trilium/security/advisories/GHSA-66pm-8hvq-2wwx
Source: security-advisories@github.com
Resource: N/A
Change History
0Changes found

Details not found