CVE-2026-69086 SiYuan before v3.7.3 Path Traversal via unvalidated avID
Attackers can read JSON files outside the intended directory via path traversal in SiYuan, disclosing sensitive database content.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-69086?
CVE-2026-69086 is a high-severity path traversal vulnerability in siyuan-note siyuan, published on 3 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-22
Which versions are affected by CVE-2026-69086?
3 open source packages ship an affected version, including github.com/siyuan-note/siyuan/kernel.
| Package | Affected | Fixed in |
|---|---|---|
github.com/siyuan-note/siyuan/kernel Go | All versions | 0.0.0-20260720151813-0f5a0e7c67b0 |
github.com/siyuan-note/siyuan/kernel Go | All versions | 0.0.0-20260720151813-0f5a0e7c67b0 |
github.com/siyuan-note/siyuan/kernel Go | All versions | 0.0.0-20260720151813-0f5a0e7c67b0 |
How do I fix CVE-2026-69086?
Upgrade github.com/siyuan-note/siyuan/kernel to 0.0.0-20260720151813-0f5a0e7c67b0 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-69086 being exploited?
There is no known exploitation of CVE-2026-69086 in the wild and no public exploit code.
Sources
Also known as GHSA-7hm9-v7vf-7g4w, GO-2026-6373.