CVE-2026-103975 Appium: Symlink based Zip Slip in @appium/support ZIP extraction
Attackers can exploit symlink-based Zip Slip in Appium's ZIP extraction to write arbitrary files, potentially leading to code execution.
- 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
What is CVE-2026-103975?
CVE-2026-103975 is a medium-severity path traversal vulnerability in appium, published on 14 Oct 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
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.
Weakness: CWE-59
Which versions are affected by CVE-2026-103975?
2 open source packages ship an affected version, including @appium/support.
| Package | Affected | Fixed in |
|---|---|---|
@appium/support npm | All versions | 7.2.6 |
@appium/support npm | All versions | 7.2.6 |
How do I fix CVE-2026-103975?
Upgrade @appium/support to 7.2.6 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-103975 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-103975 exists.
Sources
Also known as GHSA-qfxx-c367-67f8.