siyuan-note SiYuan up to 3.7.0 Block Search Endpoint fullTextSearchBlock paths sql injection

Summaryinfo

A vulnerability was found in siyuan-note SiYuan up to 3.7.0. It has been classified as critical. The affected element is an unknown function of the file /api/search/fullTextSearchBlock of the component Block Search Endpoint. Performing a manipulation of the argument paths results in sql injection. This vulnerability is identified as CVE-2026-59834. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical has been found in siyuan-note SiYuan up to 3.7.0. This affects an unknown code block of the file /api/search/fullTextSearchBlock of the component Block Search Endpoint. The manipulation of the argument paths with an unknown input leads to a sql injection vulnerability. CWE is classifying the issue as CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, the block search endpoint POST /api/search/fullTextSearchBlock concatenates attacker-controlled paths values into SQL predicates used by non-SQL search modes, allowing an unauthenticated publish visitor to inject a UNION SELECT and return rows from hidden documents by projecting an allowed visible box and path. This issue is fixed in versions 3.7.1.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-59834 since 07/07/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1505 for this issue.

Upgrading to version 3.7.1 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• siyuan-note

Name

• SiYuan

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6
• 3.7.0

Website

• Product: https://github.com/siyuan-note/siyuan/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion