CVE-2026-104410 SiYuan - Information Disclosure

SiYuan before 3.8.5 contains an information disclosure vulnerability caused by improper access control in /api/export/preview endpoint, letting publish readers access password-protected and publish-disabled database rows, exploit requires attacker to be a publish reader.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.38% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Information Disclosure
Impact
Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
2 October 2026
Updated
15 October 2026
Weakness
CWE-862

Vendor fix

Update to version 3.8.5 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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