by Kastro
Paper/Archive/CVE-2026-22685

CVE-2026-22685

DevToys-app DevToys — DevToys Path Traversal (“Zip Slip”) Vulnerability in DevToys Extension Installation

EPSS 0.5%CVSS 9.8
critical.is priorityof 100
38
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 40.6.406 × 208.1No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
DevToys>= 2.0.0.0, < 2.0.9.0–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub_M (CNA)8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refgithub.com/DevToys-app/DevToys/security/advisories/GHSA-ggxr-h6fm-p2qhrefgithub.com/DevToys-app/DevToys/pull/1643refgithub.com/DevToys-app/DevToys/commit/02fb7d46d9c663a4ee6ed968baa6a8810405047f