high8.2
CVE-2026-74801
SiYuan before 3.7.4 fails to properly escape workspace directory paths when constructing command-line arguments for the elevated elevator.exe helper process.
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| SiYuan | before 3.7.4 |
Versions were read from the advisory text. No structured product data has been published for this record yet.