CVE-2026-32938 SiYuan has an Arbitrary File Read in its Desktop Publish Service
An attacker can read arbitrary sensitive files from the local system by exploiting path traversal in the desktop publish service.
- 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-2026-32938?
CVE-2026-32938 is a critical path traversal vulnerability in B3log Siyuan, published on 20 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
SiYuan is a personal knowledge management system. In versions 3.6.0 and below, the /api/lute/html2BlockDOM on the desktop copies local files pointed to by file:// links in pasted HTML into the workspace assets directory without validating paths against a sensitive-path list. Together with GET /assets/*path, which only requires authentication, a publish-service visitor can cause the desktop kernel to copy any readable sensitive file and then read it via GET, leading to exfiltration of sensitive files. This issue has been fixed in version 3.6.1.
Which versions are affected by CVE-2026-32938?
3 open source packages ship an affected version, including github.com/siyuan-note/siyuan/kernel. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/siyuan-note/siyuan/kernel Go | All versions | None |
github.com/siyuan-note/siyuan/kernel Go | All versions to 0.0.0-20260313024916-fd6526133bb3 | None |
github.com/siyuan-note/siyuan/kernel Go | All versions to 0.0.0-20260313024916-fd6526133bb3 | None |
Products include B3log Siyuan.
How do I fix CVE-2026-32938?
Upgrade to a fixed version.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-32938 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-32938 exists.
Other vulnerabilities in B3log Siyuan
- CVE-2026-33669 SiYuan has Arbitrary Document Reading within the Publishing Service
- CVE-2026-33670 SiYuan has directory traversal within its publishing service
- CVE-2026-32767 SiYuan: Authorization Bypass Allows Arbitrary SQL Execution via Search API
- CVE-2024-53504 SQL injection in n/a
- CVE-2024-53505 SQL injection in n/a
Sources
Also known as GHSA-fq2j-j8hc-8vw8, GO-2026-4722.