CVE-2026-74801
Last modified
CVE-2026-74801 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. 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..
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:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| siyuan-note | siyuan | < 3.7.4 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-74801?
How severe is CVE-2026-74801?
How do I fix CVE-2026-74801?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-74796OpenTofu before 1.11.7 fails to validate existing symlinks i…6.1
- CVE-2026-74797OpenTofu versions before 1.11.4 contain a denial of service …3.1
- CVE-2026-74798SiYuan kernel before v3.7.4 contains a path traversal vulner…8.7
- CVE-2026-74799SiYuan before 3.7.4 registers Go net/http/pprof debug endpoi…9.3
- CVE-2026-7480An Incorrect Permission Assignment for Critical Resource vul…7.3
- CVE-2026-74800SiYuan before v3.7.4 fails to set Content-Disposition and X-…9
- CVE-2026-74802SiYuan versions before 3.7.4 contain a cross-site WebSocket …8.2
- CVE-2026-74803Joomla Extension - yootheme.com - Unauthenticated arbitrary …10
- CVE-2026-74804Joomla Extension - yootheme.com - Unauthenticated SQL inject…9.3
- CVE-2026-7481GitLab has remediated an issue in GitLab EE affecting all ve…5.4
- CVE-2026-7482Ollama before 0.17.1 contains a heap out-of-bounds read vuln…9.1
- CVE-2026-7483Local privilege escalation potentially allowed an attacker t…8.5
Are you affected by CVE-2026-74801?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST