CVE-2026-82650

MediumCVSS 4.4/10Last modified Aug 31, 2026

Description

SiYuan 3.8.0 contains a path traversal / sensitive file exposure vulnerability in the RenderTemplate function (kernel/model/template.go), reachable via the POST /api/template/render endpoint (kernel/api/template.go). The endpoint restricts the supplied path only to the workspace directory (util.IsAbsPathInWorkspace) but, unlike the file API's refuseToAccess() blocklist, applies no sensitive-path exclusion. This allows an authenticated attacker to read sensitive workspace files, including conf/conf.json, which contains the API token and cookie signing key. The issue is fixed in v3.8.1.

Metrics

CVSS 3.1 4.4/10CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-668

Affected software

No affected versions have been published.

Timeline

Published: Aug 30, 2026
Last modified: Aug 31, 2026
NVD status: Deferred

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