Vulnerability · Published Oct 14, 2026 · Assigned by GitHub_M
CVE-2026-103975Appium: Symlink based Zip Slip in @appium/support ZIP extraction
Medium 6.5
In plain English
A medium-severity security flaw in appium from appium. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Appium is a cross-platform automation framework for all kinds of apps, built on top of the W3C WebDriver protocol. Prior to 7.2.6, @appium/support ZIP extraction accepts an archive entry that creates a symbolic link to a location outside the extraction directory and then accepts a later regular-file entry whose legitimate name resolves through that link. The lexical containment check examines entry names without validating the symlink target or the real destination, so an attacker-controlled archive can write files to arbitrary locations writable by the Appium process. This is distinct from the earlier parent-directory entry-name traversal fixed in 7.0.6 because the bypass uses no parent-directory or absolute entry name. Depending on the writable destination, the arbitrary file write can overwrite configuration, startup scripts, or executables and lead to code execution. This issue is fixed in version 7.2.6.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | @appium/support | 7.2.6 | GHSA-qfxx-c367-67f8 |
Affected products (as reported)
Weakness: CWE-59 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
References
- https://github.com/appium/appium/security/advisories/GHSA-qfxx-c367-67f8 x_refsource_CONFIRM
- https://github.com/appium/appium/pull/22436 x_refsource_MISC
- https://github.com/appium/appium/commit/d9eb36f413153e28b04b92d8ce4447da270371c0 x_refsource_MISC
- https://github.com/appium/appium/releases/tag/@appium/support@7.2.6 x_refsource_MISC