{"apiVersion":"1.0","identifier":"CVE-2026-74801","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.","publishedAt":"2026-08-17T11:16:40","lastModifiedAt":"2026-08-26T17:04:50","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74801","cvssScore":8.2,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","epssProbability":0.00265,"riskScore":0.84,"affectedProduct":"SiYuan","affectedVersions":"<3.7.4","vulnerabilityType":"Web app","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-74801","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-74801","en":"https://www.redsauce.net/en/cves/CVE-2026-74801","fr":"https://www.redsauce.net/fr/cves/CVE-2026-74801","pt":"https://www.redsauce.net/pt/cves/CVE-2026-74801","de":"https://www.redsauce.net/de/cves/CVE-2026-74801","sk":"https://www.redsauce.net/sk/cves/CVE-2026-74801","el":"https://www.redsauce.net/el/cves/CVE-2026-74801"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-74801"}}