Siyuan: Authenticated path traversal in /snippets/ static handler (serveSnippets) leaks conf/conf.json secrets and siyuan.db

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

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

EPSS

• CVE-2026-59832: 0.46% estimated exploitation activity in the next 30 days; percentile 40.31 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Reporter: Cavan Loughran, Celvex Group Inc. Summary ------- The /snippets/filepath route handler serveSnippets in kernel/server/serve.go performs a bare filepath.Join(util.SnippetsPath, filePath) on the single-decoded c.Request.URL.Path and serves the result with c.File(), with NO IsSubPath containment and NO IsSensitivePath denylist - unlike the sibling /export/ (serveExport) and /appearance/ (serveAppearance) handlers, which both carry IsSubPath, and unlike /assets/ (serveAssets), whose traversal was fixed in GHSA-p4m3-mgmm-c664. Because util.SnippetsPath = WorkspaceDir/data/snippets, an authenticated request to GET /snippets/%2e%2e/%2e%2e/conf/conf.json resolves to WorkspaceDir/conf/conf.json and leaks the kernel API token and AccessAuthCode (the same secret file CVE-2026-30869 leaked from /export/); GET /snippets/%2e%2e/%2e%2e/temp/siyuan.db leaks the full document database. Affected versions ----------------- v3.6.5 and current master (verified by direct source read). The…

Published by the source

2 Sep 2026, 14:17 UTC

Last modified by the source

10 Sep 2026, 15:15 UTC

Source last checked

26 Oct 2026, 15:28 UTC

1. Revision 3 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-275h-v5h9-vr82

2. Revision 2 · amended · 24 Oct 2026

   Amended from osv record GO-2026-6350

3. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-275h-v5h9-vr82

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# Patch Next advisory brief: CVE-2026-59832

Advisory: Siyuan: Authenticated path traversal in /snippets/ static handler (serveSnippets) leaks conf/conf.json secrets and siyuan.db
IDs: CVE-2026-59832, GHSA-275h-v5h9-vr82
Record: https://patchnext.com/advisories/cve-2026-59832 (revision 3, source checked 26 Oct 2026, 15:28 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.7)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: github.com/siyuan-note/siyuan/kernel 0.0.0-20260704035520-68cc0f537dfa. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go github.com/siyuan-note/siyuan/kernel: affected < 0.0.0-20260704035520-68cc0f537dfa; fixed in 0.0.0-20260704035520-68cc0f537dfa

## Suggested inspection (read-only)
- Go github.com/siyuan-note/siyuan/kernel: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on github.com/siyuan-note/siyuan/kernel.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-275h-v5h9-vr82 (OSV record GHSA-275h-v5h9-vr82 lists affected ranges: Go github.com/siyuan-note/siyuan/kernel >=0 <0.0.0-20260704035520-68cc0f537dfa (fixed))
- Verified: https://osv.dev/vulnerability/GO-2026-6350 (OSV record GO-2026-6350 lists affected ranges: Go github.com/siyuan-note/siyuan/kernel >=0 <0.0.0-20260704035520-68cc0f537dfa (fixed))
- Verified: https://github.com/advisories/GHSA-275h-v5h9-vr82 (GitHub-reviewed advisory GHSA-275h-v5h9-vr82 lists affected ranges: Go github.com/siyuan-note/siyuan/kernel >=0 <0.0.0-20260704035520-68cc0f537dfa)

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