# CVE-2026-22685: DevToys Path Traversal (“Zip Slip”) Vulnerability in DevToys Extension Installation

> Attackers can overwrite arbitrary files via malicious extension packages, potentially leading to code execution or system corruption.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 10 Jan 2026
- **Updated:** 12 Jan 2026
- **Also known as:** GHSA-ggxr-h6fm-p2qh

## What is CVE-2026-22685?

CVE-2026-22685 is a high-severity path traversal vulnerability in DevToys-app DevToys, published on 10 Jan 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

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.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2026-22685?

It affects 1 product.


Products: Devtoys Devtoys.

## How do I fix CVE-2026-22685?

No fix has been published for CVE-2026-22685 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-22685 being exploited?

There is no known exploitation of CVE-2026-22685 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-22685 and fix it if it is affected.

What it is: CVE-2026-22685 is a high-severity path traversal vulnerability in DevToys-app DevToys, published on 10 Jan 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-22685 in the wild and no public exploit code.

Affected product: DevToys-app DevToys. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-22685/ (Markdown: https://insights.sbomify.com/CVE-2026-22685/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-22685
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-22685
- OSV: https://osv.dev/vulnerability/CVE-2026-22685

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-22685/
Summaries are generated and may contain mistakes; the official description above is the record.