Symlink Following Affecting org.webjars.npm:tar-fs package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-ORGWEBJARSNPM-13045214
- published25 Sept 2025
- disclosed24 Sept 2025
- creditMapta, BugBunny_ai
Introduced: 24 Sep 2025
CVE-2025-59343 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
org.webjars.npm:tar-fs is a filesystem bindings for tar-stream.
Affected versions of this package are vulnerable to Symlink Following via the symlink validation process in the inCwd function. An attacker can write files outside the intended extraction directory by crafting a malicious tarball that contains symlinks starting with the name of the current working directory.
Workaround
This vulnerability can be mitigated by using the ignore option to exclude non-file and non-directory entries during the extraction process.