CVE-2026-73606CWE-639

CVE-2026-73606

Medium · published August 13, 2026

CVSS v3.1
5.8
EPSS
0%
Percentile
24.3
In the wild
Unconfirmed
What it is

SiYuan versions before v3.7.4 contain an information disclosure vulnerability in the /api/block/getRefIDs endpoint that fails to check password-protected document tiers. Unauthenticated readers can discover that password-protected documents reference specific blocks and obtain block identifiers without entering the document password.

The record
Technical detail
CVSS v3.1
5.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00325 · 24.3th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-08-13T16:17Z
References (3)
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-vg99-7gj7-2fr5 · [email protected]https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-getrefids · [email protected]https://github.com/siyuan-note/siyuan/security/advisories/GHSA-vg99-7gj7-2fr5 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 13 AUG 11:28Z
    SiYuan before v3.7.4 Information Disclosure via getRefIDs
    cvelistv5