CVE-2026-72793CWE-522

CVE-2026-72793

High · published August 13, 2026

CVSS v3.1
8.6
EPSS
0%
Percentile
34.0
In the wild
Unconfirmed
What it is

SiYuan versions before v3.7.4 fail to mask sensitive configuration fields in the /api/system/getConf endpoint, allowing anonymous or publish-reader users to obtain the session-cookie signing key, OS username via pandoc path, and encrypted-notebook key material. Attackers can forge and tamper with session cookies to impersonate users, and on instances without access-auth codes configured, escalate to administrator privileges.

The record
Technical detail
CVSS v3.1
8.6 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00409 · 34.0th percentile
Weakness
CWE-522 · Insufficiently Protected Credentials
Published
2026-08-13T00:17Z
References (3)
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-h4v5-crx2-3cv4 · [email protected]https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-api-system-getconf · [email protected]https://github.com/siyuan-note/siyuan/security/advisories/GHSA-h4v5-crx2-3cv4 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 12 AUG 19:07Z
    SiYuan before v3.7.4 Information Disclosure via /api/system/getConf
    cvelistv5