CVE-2026-73048 SiYuan before v3.7.4 Information Disclosure via getRefIDsByFileAnnotationID

Medium 6.9 Published Updated

Attackers can extract block identifiers from restricted documents via the getRefIDsByFileAnnotationID endpoint, revealing citation relationships in protected tiers.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-73048?

CVE-2026-73048 is a medium-severity vulnerability in siyuan-note siyuan, published on 14 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 getRefIDsByFileAnnotationID endpoint that returns block identifiers citing PDF annotations without publish-access filtering. Attackers can extract block identifiers from restricted documents by supplying annotation identifiers visible in published pages, revealing citation relationships across forbidden and password-protected tiers.

Weakness: CWE-862

Which versions are affected by CVE-2026-73048?

How do I fix CVE-2026-73048?

No fix has been published for CVE-2026-73048 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-73048 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-73048 exists.

Sources

Also known as GHSA-p6g3-j3g7-h96w.

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