Description
A TOCTOU and symlink race in svenstaro/miniserve 0.32.0 upload finalization (when uploads are enabled) can allow an attacker to overwrite arbitrary files outside the intended upload/document root in deployments where the attacker can create/replace filesystem entries in the upload destination directory (e.g., shared writable directory/volume).
Metrics
CVSS 3.1 6.8/10
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- https://gist.github.com/thesmartshadow/55688f87f8b985eb530e07d00ef8c63fExploit, Third Party Advisory
- https://github.com/svenstaro/miniserveProduct
Timeline
- Published
- Jan 23, 2026
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed