CVE-2026-72802 SiYuan before v3.7.4 Information Disclosure via resolveAssetPath
Attackers can obtain absolute filesystem paths and OS usernames by exploiting the resolveAssetPath endpoint in SiYuan.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-72802?
CVE-2026-72802 is a medium-severity vulnerability in siyuan-note siyuan, published on 12 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
SiYuan versions before v3.7.4 contain an information disclosure vulnerability in the resolveAssetPath endpoint that returns absolute filesystem paths unmodified to CheckAuth-only requests. Attackers can harvest relative asset paths from published documents and submit them to resolveAssetPath to obtain the server's absolute workspace path, disclosing the operating-system username and installation layout.
Weakness: CWE-639
Which versions are affected by CVE-2026-72802?
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 | 0.0.0-20260724095509-eee3410aa131 |
github.com/siyuan-note/siyuan/kernel Go | All versions | 0.0.0-20260724095509-eee3410aa131 |
github.com/siyuan-note/siyuan/kernel Go | All versions | 0.0.0-20260724095509-eee3410aa131 |
How do I fix CVE-2026-72802?
Upgrade github.com/siyuan-note/siyuan/kernel to 0.0.0-20260724095509-eee3410aa131 or later.
Is CVE-2026-72802 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-72802 exists.
Sources
Also known as GHSA-jv8v-xq2h-657v, GO-2026-6398.