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12 vulnerabilities found for Trilium by TriliumNext

CVE-2026-39311 (GCVE-0-2026-39311)

Vulnerability from nvd – Published: 2026-05-20 19:13 – Updated: 2026-05-20 19:27
VLAI?
Title
Trilium Notes: Stored XSS Leads to Unauthorized Remote Code Execution (RCE) via Unsanitized SVG Attachments
Summary
Trilium Notes is a cross-platform, hierarchical note taking application focused on building large personal knowledge bases. Versions 0.102.1 and prior contain a critical security flaw where lack of SVG sanitization combined with a disabled Content Security Policy (CSP) and a publicly reachable backend execution API results in an unauthenticated Remote Code Execution (RCE). The vulnerability arises from an insecure-by-design architecture: Trilium serves SVG attachments with the image/svg+xml MIME type without any sanitization, and it explicitly disables Helmet's Content Security Policy middleware, removing the primary defense against script execution in served assets. Because the malicious SVG runs under the Same-Origin Policy, it can issue a fetch('/') to extract the csrfToken from the document body. With that token, it can send a signed request to /api/script/exec to execute arbitrary Node.js code on the server. An attacker can compromise the entire server instance simply by tricking an authenticated user into viewing a shared SVG attachment. The issue has been fixed in version 0.102.2.
Severity ?
6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:H
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
Impacted products
Vendor Product Version
TriliumNext Trilium Affected: < 0.102.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-39310 (GCVE-0-2026-39310)

Vulnerability from nvd – Published: 2026-05-20 19:05 – Updated: 2026-05-21 12:53
VLAI?
Title
Trilium Notes: Authentication Bypass in Clipper API for Electron (Desktop) Builds
Summary
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 Clipper API in Trilium Desktop (v0.101.3) allows full authentication bypass when running in an Electron environment. When Trilium detects an Electron environment, it explicitly disables authentication middleware for the Clipper API, exposing endpoints such as /api/clipper/notes to the network with no password, API token, or CSRF protection. An attacker on a shared network (for example, a corporate LAN or public Wi-Fi) can scan for open high-range ports using a tool like nmap, since Trilium often binds to ports such as 37840. Once a candidate port is found, an unauthenticated request to the Clipper handshake endpoint, which also bypasses authentication, confirms a Trilium instance by returning the application name and protocol version. This facilitates unauthorized data access, phishing, and local system compromise. The issue has been fixed in version 0.102.2.
Severity ?
8.6 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
CWE
  • CWE-284 - Improper Access Control
  • CWE-306 - Missing Authentication for Critical Function
Assigner
References
Impacted products
Vendor Product Version
TriliumNext Trilium Affected: < 0.102.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-39309 (GCVE-0-2026-39309)

Vulnerability from nvd – Published: 2026-05-19 23:54 – Updated: 2026-05-20 15:45
VLAI?
Title
Trilium Notes: macOS TCC Bypass via Prompt Spoofing
Summary
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.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE
  • CWE-451 - User Interface (UI) Misrepresentation of Critical Information
  • CWE-290 - Authentication Bypass by Spoofing
Assigner
References
Impacted products
Vendor Product Version
TriliumNext Trilium Affected: < 0.102.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-35593 (GCVE-0-2026-35593)

Vulnerability from nvd – Published: 2026-05-19 23:32 – Updated: 2026-05-20 13:20
VLAI?
Title
Trilium Notes has Local File Inclusion via upload modified file API endpoint
Summary
Trilium Notes is an open-source, cross-platform hierarchical note taking application for building large personal knowledge bases. Versions 0.102.1 and prior are vulnerable to Local File Inclusion, allowing an authenticated attacker to read sensitive arbitrary files from the server's filesystem. The uploadModifiedFileToAttachment function, which is called when a POST request is received to /api/attachments/{attachmentId}/upload-modified-file, replaces the content of the attachment with the content from another file (whose path is provided in filePath of Request body). After which the content of the attachment can be viewed at /api/attachments/{attachmentId}/download. This exposes sensitive system files such as SSH keys, credentials, configs, and OS files, potentially leading to remote code execution and compromise of co-hosted applications. This issue has been fixed in version 0.102.2.
Severity ?
6.8 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-73 - External Control of File Name or Path
Assigner
References
Impacted products
Vendor Product Version
TriliumNext Trilium Affected: < 0.102.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-68621 (GCVE-0-2025-68621)

Vulnerability from nvd – Published: 2026-02-06 21:21 – Updated: 2026-02-09 15:26
VLAI?
Title
Trilium Notes has a Timing Attack Vulnerability in /api/login/sync
Summary
Trilium Notes is an open-source, cross-platform hierarchical note taking application with focus on building large personal knowledge bases. Prior to 0.101.0, a critical timing attack vulnerability in Trilium's sync authentication endpoint allows unauthenticated remote attackers to recover HMAC authentication hashes byte-by-byte through statistical timing analysis. This enables complete authentication bypass without password knowledge, granting full read/write access to victim's knowledge base. This vulnerability is fixed in 0.101.0.
Severity ?
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE
  • CWE-208 - Observable Timing Discrepancy
Assigner
References
Impacted products
Vendor Product Version
TriliumNext Trilium Affected: < 0.101.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-53544 (GCVE-0-2025-53544)

Vulnerability from nvd – Published: 2025-08-05 00:14 – Updated: 2025-08-05 13:55
VLAI?
Title
Trilium Notes is Vulnerable to Brute-force Protection Bypass via Initial Sync Seed Retrieval
Summary
Trilium Notes is an open-source, cross-platform hierarchical note taking application with focus on building large personal knowledge bases. In versions below 0.97.0, a brute-force protection bypass in the initial sync seed retrieval endpoint allows unauthenticated attackers to guess the login password without triggering rate limiting. Trilium is a single-user app without a username requirement, and brute-force protection bypass makes exploitation much more feasible. Multiple features provided by Trilium (e.g. MFA, share notes, custom request handler) indicate that Trilium can be exposed to the internet. This is fixed in version 0.97.0.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
References
Impacted products
Vendor Product Version
TriliumNext Trilium Affected: < 0.97.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-39311 (GCVE-0-2026-39311)

Vulnerability from cvelistv5 – Published: 2026-05-20 19:13 – Updated: 2026-05-20 19:27
VLAI?
Title
Trilium Notes: Stored XSS Leads to Unauthorized Remote Code Execution (RCE) via Unsanitized SVG Attachments
Summary
Trilium Notes is a cross-platform, hierarchical note taking application focused on building large personal knowledge bases. Versions 0.102.1 and prior contain a critical security flaw where lack of SVG sanitization combined with a disabled Content Security Policy (CSP) and a publicly reachable backend execution API results in an unauthenticated Remote Code Execution (RCE). The vulnerability arises from an insecure-by-design architecture: Trilium serves SVG attachments with the image/svg+xml MIME type without any sanitization, and it explicitly disables Helmet's Content Security Policy middleware, removing the primary defense against script execution in served assets. Because the malicious SVG runs under the Same-Origin Policy, it can issue a fetch('/') to extract the csrfToken from the document body. With that token, it can send a signed request to /api/script/exec to execute arbitrary Node.js code on the server. An attacker can compromise the entire server instance simply by tricking an authenticated user into viewing a shared SVG attachment. The issue has been fixed in version 0.102.2.
Severity ?
6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:H
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
Impacted products
Vendor Product Version
TriliumNext Trilium Affected: < 0.102.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-39310 (GCVE-0-2026-39310)

Vulnerability from cvelistv5 – Published: 2026-05-20 19:05 – Updated: 2026-05-21 12:53
VLAI?
Title
Trilium Notes: Authentication Bypass in Clipper API for Electron (Desktop) Builds
Summary
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 Clipper API in Trilium Desktop (v0.101.3) allows full authentication bypass when running in an Electron environment. When Trilium detects an Electron environment, it explicitly disables authentication middleware for the Clipper API, exposing endpoints such as /api/clipper/notes to the network with no password, API token, or CSRF protection. An attacker on a shared network (for example, a corporate LAN or public Wi-Fi) can scan for open high-range ports using a tool like nmap, since Trilium often binds to ports such as 37840. Once a candidate port is found, an unauthenticated request to the Clipper handshake endpoint, which also bypasses authentication, confirms a Trilium instance by returning the application name and protocol version. This facilitates unauthorized data access, phishing, and local system compromise. The issue has been fixed in version 0.102.2.
Severity ?
8.6 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
CWE
  • CWE-284 - Improper Access Control
  • CWE-306 - Missing Authentication for Critical Function
Assigner
References
Impacted products
Vendor Product Version
TriliumNext Trilium Affected: < 0.102.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-39309 (GCVE-0-2026-39309)

Vulnerability from cvelistv5 – Published: 2026-05-19 23:54 – Updated: 2026-05-20 15:45
VLAI?
Title
Trilium Notes: macOS TCC Bypass via Prompt Spoofing
Summary
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.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE
  • CWE-451 - User Interface (UI) Misrepresentation of Critical Information
  • CWE-290 - Authentication Bypass by Spoofing
Assigner
References
Impacted products
Vendor Product Version
TriliumNext Trilium Affected: < 0.102.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-35593 (GCVE-0-2026-35593)

Vulnerability from cvelistv5 – Published: 2026-05-19 23:32 – Updated: 2026-05-20 13:20
VLAI?
Title
Trilium Notes has Local File Inclusion via upload modified file API endpoint
Summary
Trilium Notes is an open-source, cross-platform hierarchical note taking application for building large personal knowledge bases. Versions 0.102.1 and prior are vulnerable to Local File Inclusion, allowing an authenticated attacker to read sensitive arbitrary files from the server's filesystem. The uploadModifiedFileToAttachment function, which is called when a POST request is received to /api/attachments/{attachmentId}/upload-modified-file, replaces the content of the attachment with the content from another file (whose path is provided in filePath of Request body). After which the content of the attachment can be viewed at /api/attachments/{attachmentId}/download. This exposes sensitive system files such as SSH keys, credentials, configs, and OS files, potentially leading to remote code execution and compromise of co-hosted applications. This issue has been fixed in version 0.102.2.
Severity ?
6.8 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-73 - External Control of File Name or Path
Assigner
References
Impacted products
Vendor Product Version
TriliumNext Trilium Affected: < 0.102.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-68621 (GCVE-0-2025-68621)

Vulnerability from cvelistv5 – Published: 2026-02-06 21:21 – Updated: 2026-02-09 15:26
VLAI?
Title
Trilium Notes has a Timing Attack Vulnerability in /api/login/sync
Summary
Trilium Notes is an open-source, cross-platform hierarchical note taking application with focus on building large personal knowledge bases. Prior to 0.101.0, a critical timing attack vulnerability in Trilium's sync authentication endpoint allows unauthenticated remote attackers to recover HMAC authentication hashes byte-by-byte through statistical timing analysis. This enables complete authentication bypass without password knowledge, granting full read/write access to victim's knowledge base. This vulnerability is fixed in 0.101.0.
Severity ?
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE
  • CWE-208 - Observable Timing Discrepancy
Assigner
References
Impacted products
Vendor Product Version
TriliumNext Trilium Affected: < 0.101.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-53544 (GCVE-0-2025-53544)

Vulnerability from cvelistv5 – Published: 2025-08-05 00:14 – Updated: 2025-08-05 13:55
VLAI?
Title
Trilium Notes is Vulnerable to Brute-force Protection Bypass via Initial Sync Seed Retrieval
Summary
Trilium Notes is an open-source, cross-platform hierarchical note taking application with focus on building large personal knowledge bases. In versions below 0.97.0, a brute-force protection bypass in the initial sync seed retrieval endpoint allows unauthenticated attackers to guess the login password without triggering rate limiting. Trilium is a single-user app without a username requirement, and brute-force protection bypass makes exploitation much more feasible. Multiple features provided by Trilium (e.g. MFA, share notes, custom request handler) indicate that Trilium can be exposed to the internet. This is fixed in version 0.97.0.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
References
Impacted products
Vendor Product Version
TriliumNext Trilium Affected: < 0.97.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/TriliumNext/Trilium/security/advisories/GHSA-hw5p-ff75-327r",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/TriliumNext/Trilium/security/advisories/GHSA-hw5p-ff75-327r"
        },
        {
          "name": "https://github.com/TriliumNext/Trilium/pull/6243/commits/04c8f8a1234e8c9f4a87da187180375227b21223",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/TriliumNext/Trilium/pull/6243/commits/04c8f8a1234e8c9f4a87da187180375227b21223"
        },
        {
          "name": "https://github.com/TriliumNext/Trilium/releases/tag/v0.97.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/TriliumNext/Trilium/releases/tag/v0.97.0"
        }
      ],
      "source": {
        "advisory": "GHSA-hw5p-ff75-327r",
        "discovery": "UNKNOWN"
      },
      "title": "Trilium Notes is Vulnerable to Brute-force Protection Bypass via Initial Sync Seed Retrieval"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-53544",
    "datePublished": "2025-08-05T00:14:33.857Z",
    "dateReserved": "2025-07-02T15:15:11.515Z",
    "dateUpdated": "2025-08-05T13:55:55.320Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}