CVE-2026-72790 SiYuan before v3.7.4 Information Disclosure via getNotebookInfo
Attackers can access unauthorized notebook metadata via an unprotected API endpoint, exposing private document details.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-72790?
CVE-2026-72790 is a medium-severity missing authorization 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 before v3.7.4 contains an information disclosure vulnerability in the /api/notebook/getNotebookInfo endpoint that returns notebook metadata without authorization checks. Attackers can read notebook names, document counts, sizes, and timestamps for closed or non-published notebooks that should be hidden from readers.
Weakness: CWE-862
Which versions are affected by CVE-2026-72790?
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 | 0.0.0-20260726005141-9edb321eb451 |
github.com/siyuan-note/siyuan/kernel Go | All versions | 0.0.0-20260726005141-9edb321eb451 |
github.com/siyuan-note/siyuan/kernel Go | All versions | 0.0.0-20260726005141-9edb321eb451 |
How do I fix CVE-2026-72790?
Upgrade github.com/siyuan-note/siyuan/kernel to 0.0.0-20260726005141-9edb321eb451 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-72790 being exploited?
There is no known exploitation of CVE-2026-72790 in the wild and no public exploit code.
Sources
Also known as GHSA-74pj-6g7r-j55c, GO-2026-6431.