Relative Path Traversal Affecting chainguard.dev/apko/pkg/apk/fs package, versions >=0.14.8 <1.1.0
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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Start learning- Snyk IDSNYK-GOLANG-CHAINGUARDDEVAPKOPKGAPKFS-15202505
- published4 Feb 2026
- disclosed3 Feb 2026
- creditOleh Konko
Introduced: 3 Feb 2026
CVE-2026-25121 (opens in a new tab)How to fix?
Upgrade chainguard.dev/apko/pkg/apk/fs to version 1.1.0 or higher.
Overview
Affected versions of this package are vulnerable to Relative Path Traversal via the dirFS filesystem abstraction. An attacker can perform unauthorized filesystem writes outside the intended base directory by supplying a crafted APK package containing malicious directory or symlink entries and convincing a user to install it.