DevToys Path Traversal (“Zip Slip”) Vulnerability in DevToys Extension Installation
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
DevToys is a desktop app for developers. In versions from 2.0.0.0 to before 2.0.9.0, a path traversal vulnerability exists in the DevToys extension installation mechanism. When processing extension packages (NUPKG archives), DevToys does not sufficiently validate file paths contained within the archive. A malicious extension package could include crafted file entries such as ../../…/target-file, causing the extraction process to write files outside the intended extensions directory. This flaw enables an attacker to overwrite arbitrary files on the user’s system with the privileges of the DevToys process. Depending on the environment, this may lead to code execution, configuration tampering, or corruption of application or system files. This issue has been patched in version 2.0.9.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| DevToys-app | DevToys | 2.0.0.0 to before 2.0.9.0 | 2.0.9.0 | Patch available | CNA |
- DevToys VendorDevToys-app Affected 2.0.0.0 to before 2.0.9.0 Fixed in 2.0.9.0 Patch available CNA
Remediation
- Fix · CNA DevToys (DevToys-app) Fixed in 2.0.9.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-22685
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences