CVE-2026-32747
SiYuan is a personal knowledge management system. In versions 3.6.0 and below, the globalCopyFiles API eads source files using filepath.Abs() with no workspace boundary check, relying solely on util.IsSensitivePath() whose blocklist omits /proc/, /run/secrets/, and home directory dotfiles. An admin can copy /proc/1/environ or Docker secrets into the workspace and read them via the standard file API. An admin can exfiltrate any file readable by the SiYuan process that falls outside the incomplete blocklist. In containerized deployments this includes all injected secrets and environment variables - a common pattern for passing credentials to containers. The exfiltrated files are then accessible via the standard workspace file API and persist until manually deleted. This issue has been fixed in version 3.6.1.
EPSS 0.10% · 26.4th percentile
Risk Scores
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| b3log | siyuan | 0, 0, 0 |
| siyuan-note | siyuan | < 3.6.1, < 3.6.1, < 3.6.1 |
| github.com | siyuan-note/siyuan/kernel | 0, 0, 0 |
Exploit Intelligence
- CIRCL published-proof-of-concept: CVE-2026-32747 (circl-sighting)
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-h5vh-m7fg-w5h6 (nist-nvd)
- https://github.com/siyuan-note/siyuan/commit/9914fd1d39e5f0a8dcc9fb587e1c0b46f31490a1 (circl)
- https://github.com/siyuan-note/siyuan/releases/tag/v3.6.1 (circl)
Timeline
- Mar 14, 2026 PoC Published
- Mar 16, 2026 CVE Published
- Mar 17, 2026 Security Advisory
- Mar 20, 2026 EPSS Score
- Mar 21, 2026 EPSS Score
- Mar 22, 2026 EPSS Score
- Mar 23, 2026 EPSS Score
- Mar 24, 2026 EPSS Score
- Mar 25, 2026 EPSS Score
- Mar 30, 2026 CVE Updated
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
References
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-h5vh-m7fg-w5h6 url
- https://github.com/siyuan-note/siyuan/commit/9914fd1d39e5f0a8dcc9fb587e1c0b46f31490a1 url
- https://github.com/siyuan-note/siyuan/releases/tag/v3.6.1 url
- https://nvd.nist.gov/vuln/detail/CVE-2026-32747 advisory
- https://github.com/siyuan-note/siyuan package