CVE-2026-69085
CriticalPublic exploitSiYuan before v3.7.3 contains a SQL injection vulnerability in the /api/filetree/searchDocs endpoint, where the caller-supplied keyword parameter is concatenated directly into SQL statements with no escaping or parameter binding.
Published Aug 3, 2026 · Updated Oct 7, 2026 · Also known as GHSA-33jq-p8c2-q3q4, GO-2026-6621
Key Facts
Patch immediately- CVE-2026-69085 is a critical-severity vulnerability (CVSS 9.9 v4) affecting Siyuan (B3log), github.com/siyuan-note/siyuan/kernel (go).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 1.5% probability of exploitation in the next 30 days.
- Fixed versions are available, including Siyuan 3.7.3, github.com/siyuan-note/siyuan/kernel 0.0.0-20260721043339-eef10568384e.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
CVSS v4
9.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
EPSS (30-day exploit likelihood)
1.5%
Higher than 73.6% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2026-69085 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
SiYuan before v3.7.3 contains a SQL injection vulnerability in the /api/filetree/searchDocs endpoint, where the caller-supplied keyword parameter is concatenated directly into SQL statements with no escaping or parameter binding. The endpoint is reachable by a publish RoleReader token, or unauthenticated when publish mode is enabled with Publish.Auth.Enable set to false. Because the statement executes on a read-write SQLite handle via a driver that supports stacked (semicolon-separated) statements, an attacker can read and modify database content across all cleartext (non-encrypted) notebooks on the instance.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| SiyuanB3log | See advisory | 3.7.3 |
| github.com/siyuan-note/siyuan/kernelgo | See advisory | 0.0.0-20260721043339-eef10568384e |
Patched Releases
Siyuan
3.7.3
github.com/siyuan-note/siyuan/kernel
0.0.0-20260721043339-eef10568384e
Timeline
Publicly disclosed
Aug 3, 2026
Last updated
Oct 7, 2026
Weakness Type
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
References
- advisoryGHSA advisory
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2026/69xxx/CVE-2026-69085.json
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2026-69085
- articlehttps://github.com/siyuan-note/siyuan/releases/tag/v3.7.3
- otherhttps://github.com/siyuan-note/siyuan
FAQ
Common Questions.
SiYuan before v3.7.3 contains a SQL injection vulnerability in the /api/filetree/searchDocs endpoint, where the caller-supplied keyword parameter is concatenated directly into SQL statements with no escaping or parameter binding.
Affected: Siyuan (B3log); github.com/siyuan-note/siyuan/kernel (go). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Siyuan 3.7.3, github.com/siyuan-note/siyuan/kernel 0.0.0-20260721043339-eef10568384e.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2026-69085 Running On Your Attack Surface?
Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.
Request A Demo