CVE-2026-69086

SiYuan before v3.7.3 Path Traversal via unvalidated avID

HIGH
7.7
CVSS Score
Published: August 3, 2026 at 01:20 PM UTC
Updated: October 23, 2026 at 09:10 PM UTC
2 products affected across 2 vendorsSiyuanSiyuan

Using siyuan by siyuan-note?

Get instant alerts when new vulnerabilities affect siyuan - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.7
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

SiYuan versions before v3.7.3 fail to validate the avID parameter on all code branches in attribute-view read endpoints, allowing attackers to construct traversal paths that escape the storage directory. Authenticated users with RoleReader permissions or anonymous clients when publish authentication is disabled can read JSON files outside the attribute-view directory to disclose cross-scope database content.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.7.3
Affected range stops below 3.7.3, so it looks safe — our inference, not a vendor statement
0 ≤ v < 3.7.30
Vendor states this is fixed in 3.7.3 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.7HIGHVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-22

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card