CVE-2026-72788 SiYuan before v3.7.4 Information Disclosure via UILayout Filter

Medium 6.9 Published Updated

Unauthenticated attackers can access administrator workspace state and private asset locations via the getConf 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-2026-72788?

CVE-2026-72788 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 UILayout filter that fails to properly restrict administrator workspace state from publish readers. Unauthenticated attackers can retrieve the administrator's open documents, search terms, notebook paths, and private asset locations by calling the getConf endpoint without authentication.

Weakness: CWE-863

Which versions are affected by CVE-2026-72788?

3 open source packages ship an affected version, including github.com/siyuan-note/siyuan/kernel.

PackageAffectedFixed in
github.com/siyuan-note/siyuan/kernel GoAll versions0.0.0-20260812083335-251596fc0de2
github.com/siyuan-note/siyuan/kernel GoAll versions0.0.0-20260812083335-251596fc0de2
github.com/siyuan-note/siyuan/kernel GoAll versions0.0.0-20260812083335-251596fc0de2

How do I fix CVE-2026-72788?

Upgrade github.com/siyuan-note/siyuan/kernel to 0.0.0-20260812083335-251596fc0de2 or later.

Is CVE-2026-72788 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-72788 exists.

Sources

Also known as GHSA-hgfg-j9pg-43xw, GO-2026-6622.

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