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PUBLISHED

2026-06-24 22:16

MODIFIED

2026-06-24 22:16

CVSS_SCORE V3

7.5

EPSS (Prob. Exploit)

2.39%

Top 16.2%

🎯 NUCLEI TEMPLATE

DATA SOURCES:

NVD 🔗 2026-06-24 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25 GITHUB 🔗 2026-11-05 NUCLEI 🔗 2026-07-24

> DESCRIPTION

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, the patch for CVE-2026-41894 ("Path Traversal via Double URL Encoding") sanitized the /export/ route but the identical root cause remains in the /assets/*path route. In publish mode (anonymous read-only HTTP endpoint, default port 6808), an unauthenticated remote attacker can read arbitrary files inside WorkspaceDir — including conf/conf.json (which contains the AccessAuthCode SHA256 hash, API token, and sync keys), temp/siyuan.db, temp/blocktree.db, and siyuan.log — by double-URL-encoding .. segments. This vulnerability is fixed in 3.7.0.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EXPLOITABILITY

3.9

IMPACT

3.6

> MÉTRIQUES CVSS DÉTAILLÉES

                CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
            

Métrique	Valeur	Interprétation
AV (Vecteur d'Attaque) Attack Vector	Network (N)	Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque) Attack Complexity	Low (L)	Peu de conditions requises pour exploiter
PR (Privilèges Requis) Privileges Required	None (N)	Aucune authentification requise
UI (Interaction Utilisateur) User Interaction	None (N)	Aucune interaction utilisateur nécessaire
S (Périmètre) Scope	Unchanged (U)	Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité) Confidentiality Impact	High (H)	Divulgation totale d'informations
I (Impact Intégrité) Integrity Impact	None (N)	Aucune modification de données possible
A (Impact Disponibilité) Availability Impact	None (N)	Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité

High

Divulgation totale d'informations

Intégrité

None

Aucune modification de données possible

Disponibilité

None

Aucune interruption de service

> WEAKNESSES

CWE-22 CWE-23 CWE-1188

> CWE DETAILED DESCRIPTIONS

CWE-22: Improper Limitation of a Pathname to a Restricted Directory - The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. | CWE-23: Relative Path Traversal - The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory. | CWE-1188: Initialization of a Resource with an Insecure Default - The product initializes or sets a resource with a default that is intended to be changed by the product's installer, administrator, or maintainer, but the default is not secure.

> GITHUB SECURITY ADVISORY

GHSA-p4m3-mgmm-c664 HIGH

SiYuan: Path Traversal via Double URL Encoding in /assets/*path (publish mode arbitrary file─read), Incomplete fix of CVE-2026-41894

AFFECTED PACKAGES:

GO / github.com/siyuan-note/siyuan/kernel

< 0.0.0-20260628153353-2d5d72223df4

Fixed in: 0.0.0-20260628153353-2d5d72223df4

> NUCLEI TEMPLATES

Des templates Nuclei sont disponibles pour scanner cette vulnérabilité.

🎯

CVE-2026-54066.yaml

http/cves/2026/CVE-2026-54066.yaml

Usage: nuclei -t http/cves/2026/CVE-2026-54066.yaml -u target.com

> HISTORIQUE DES MODIFICATIONS

Première apparition

24/06/2026 22:16

Source: NVD

📊 ENRICHISSEMENT 01/11/2026 06:59

CWE

Champ modifié: Description CWE

Ancienne valeur:

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') - The product uses external input to construct a pathname that is intended to identify a file or directory that i...

Nouvelle valeur:

📊 ENRICHISSEMENT 01/07/2026 06:01

CWE