CVE-2026-72797 SiYuan before v3.7.4 Information Disclosure via getEncryptedNotebookStatus

Medium 6.9 Published Updated

Attackers can enumerate encrypted notebook names and unlock states via an unfiltered API endpoint, exposing sensitive metadata to anonymous users.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-72797?

CVE-2026-72797 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 getEncryptedNotebookStatus endpoint that returns encrypted notebook identifiers, names, and lock states without publish-access filtering. Anonymous readers and publish-mode accounts can enumerate all encrypted notebooks and their current unlock status, revealing sensitive notebook names and decryption state in memory.

Weakness: CWE-862

Which versions are affected by CVE-2026-72797?

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

PackageAffectedFixed in
github.com/siyuan-note/siyuan/kernel GoAll versions0.0.0-20260724123622-8fb1b5766093
github.com/siyuan-note/siyuan/kernel GoAll versions0.0.0-20260724123622-8fb1b5766093
github.com/siyuan-note/siyuan/kernel GoAll versions0.0.0-20260724123622-8fb1b5766093

How do I fix CVE-2026-72797?

Upgrade github.com/siyuan-note/siyuan/kernel to 0.0.0-20260724123622-8fb1b5766093 or later.

Is CVE-2026-72797 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-72797 exists.

Sources

Also known as GHSA-f2rw-w22v-54vh, GO-2026-6414.

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