CVE-2026-82650 | BDVDB-2026-366378 Detail

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.

Impact#

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Exploit#

History#

1. Version 12026-08-30Record published in the CVE List.
2. Version 22026-08-31Most recent update recorded in the CVE List.