CVE-2026-72806 SiYuan before v3.7.4 Authentication Bypass via Attribute View
Unauthenticated attackers can bypass password protection to read protected document rows in SiYuan by exploiting a missing check in attribute view rendering.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-72806?
CVE-2026-72806 is a medium-severity authentication bypass 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 authentication bypass vulnerability in the FilterViewByPublishAccess filter that fails to check publish password protection when rendering attribute views and database rows. Unauthenticated readers can access password-protected document rows including titles, block IDs, and column values by calling renderAttributeView without supplying the required password.
Weakness: CWE-862
Which versions are affected by CVE-2026-72806?
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 | 0.0.0-20260723040913-768427f20f13 |
github.com/siyuan-note/siyuan/kernel Go | All versions | 0.0.0-20260723040913-768427f20f13 |
github.com/siyuan-note/siyuan/kernel Go | All versions | 0.0.0-20260723040913-768427f20f13 |
How do I fix CVE-2026-72806?
Upgrade github.com/siyuan-note/siyuan/kernel to 0.0.0-20260723040913-768427f20f13 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-72806 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-72806 exists.
Sources
Also known as GHSA-6mcf-g667-w3qv, GO-2026-6388.