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VULNERABILITIES

CVE-2026-74801 Details

UNDERGOING ENRICHMENT

The CVE is currently being enriched by the Volerion team. The enrichment process results in the association of reference link tags, CVSS, and CPE applicability statement data.

Description

SiYuan before 3.7.4 fails to properly escape workspace directory paths when constructing command-line arguments for the elevated elevator.exe helper process. Attackers can create a malicious workspace directory with command metacharacters in its path and trigger the Microsoft Defender exclusion flow to execute arbitrary commands with administrator privileges after UAC approval.

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:…Vector:This vulnerability is currently being analyzed.
CNA: [email protected]CVSS-B:8.2 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-vmp7-pm7g-ghcc CISA-ADP
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-vmp7-pm7g-ghcc [email protected]
https://www.vulncheck.com/advisories/siyuan-before-local-privilege-escalation-via-elevator-exe [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')[email protected]

Affected Products

This vulnerability is currently being analyzed

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-74801
NVD Published Date:
Aug 17, 2026
NVD Last Modified:
Aug 26, 2026
Source:
[email protected]
CVE-2026-74801 Details - Not Deferred