CVE-2026-65607 SiYuan before v3.7.2 Path Traversal via /export/temp/
An authenticated attacker can exploit a path traversal flaw in the export handler to read arbitrary files, including sensitive system and workspace data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-65607?
CVE-2026-65607 is a high-severity path traversal vulnerability in siyuan-note siyuan, published on 23 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
SiYuan before v3.7.2 contains a path traversal vulnerability in the /export/temp/ short-circuit branch of the serveExport handler (kernel/server/serve.go). Unlike the main export branch, this branch joins the raw, percent-decoded request path with util.TempDir and serves the file without the IsSubPath or IsSensitivePath checks added in the earlier export-disclosure hardening (GHSA-6865-qjcf-286f). An authenticated attacker can send percent-encoded traversal sequences (e.g. /export/temp/%2e%2e/.../etc/passwd, where %2e%2e is decoded to '..') to read arbitrary files outside TempDir, including /etc/passwd, SSH keys (~/.ssh/*), and SiYuan workspace *.db and *.log files, bypassing the sensitive-file protection.
Weakness: CWE-22
Which versions are affected by CVE-2026-65607?
3 open source packages ship an affected version, including github.com/siyuan-note/siyuan/kernel.
| Package | Affected | Fixed in |
|---|---|---|
github.com/siyuan-note/siyuan/kernel Go | All versions | 0.0.0-20260510110132-b763d787d1f2 |
github.com/siyuan-note/siyuan/kernel Go | All versions | 0.0.0-20260510110132-b763d787d1f2 |
github.com/siyuan-note/siyuan/kernel Go | All versions | 0.0.0-20260510110132-b763d787d1f2 |
How do I fix CVE-2026-65607?
Upgrade github.com/siyuan-note/siyuan/kernel to 0.0.0-20260510110132-b763d787d1f2 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-65607 being exploited?
There is no known exploitation of CVE-2026-65607 in the wild and no public exploit code.
Sources
Also known as GHSA-2vq9-c755-fq2h, GHSA-gw25-m53r-qh88, GO-2026-6365.