Vulnerability · Published Jul 23, 2026 · Assigned by VulnCheck

CVE-2026-65607SiYuan before v3.7.2 Path Traversal via /export/temp/

Medium 6.5

In plain English

A medium-severity path traversal in siyuan from siyuan-note. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.6%top 51.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	github.com/siyuan-note/siyuan/kernel	0.0.0-20260510110132-b763d787d1f2	GHSA-gw25-m53r-qh88
Go	github.com/siyuan-note/siyuan/kernel	0.0.0-20260510110132-b763d787d1f2	GO-2026-6365

Affected products (as reported)

Vendor	Product	Versions
siyuan-note	siyuan	0 – before 3.7.2

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

GitHub Security Advisory (GHSA-gw25-m53r-qh88) vendor-advisory
Patch Commit patch
VulnCheck Advisory: SiYuan before v3.7.2 Path Traversal via /export/temp/ third-party-advisory