CVE-2026-72795 SiYuan before v3.7.4 Information Disclosure via Embed Block
Attackers can read password-protected or hidden document content by exploiting unfiltered embed endpoints 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-2026-72795?
CVE-2026-72795 is a critical 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 versions before v3.7.4 fail to filter embedded block content by publish access in the getBlockDOMWithEmbed and getBlockDOMsWithEmbed endpoints. Attackers can request published blocks containing embed queries to read content from password-protected, hidden, or forbidden documents without authorization.
Weakness: CWE-862
Which versions are affected by CVE-2026-72795?
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 | 0.0.0-20260725125659-1ca1c3c9d94b |
github.com/siyuan-note/siyuan/kernel Go | All versions | 0.0.0-20260725125659-1ca1c3c9d94b |
github.com/siyuan-note/siyuan/kernel Go | All versions | 0.0.0-20260725125659-1ca1c3c9d94b |
How do I fix CVE-2026-72795?
Upgrade github.com/siyuan-note/siyuan/kernel to 0.0.0-20260725125659-1ca1c3c9d94b or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-72795 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-72795 exists.
Sources
Also known as GHSA-h6w7-xxcf-w2mq, GO-2026-6425.