VDB
CVE-2026-25121
CVE-2026-25121
PUBLISHED
CVSS 7.5 HIGH
apko allows users to build and publish OCI container images built from apk packages. From version 0.14.8 to before 1.1.1, a path traversal vulnerability was discovered in apko's dirFS filesystem abstraction. An attacker who can supply a malicious APK package (e.g., via a compromised or typosquatted repository) could create directories or symlinks outside the intended installation root. The MkdirAll, Mkdir, and Symlink methods in pkg/apk/fs/rwosfs.go use filepath.Join() without validating that the resulting path stays within the base directory. This issue has been patched in version 1.1.1.
EPSS 0.02% · 6.6th percentile
Risk Scores
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS Score
0.02%
6.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| chainguard-dev | apko | *, * |
| chainguard | apko | 0.14.8, 0.14.8 |
| chainguard.dev | apko | 0.14.8, 0.14.8 |
Timeline
- Feb 3, 2026 CVE Published
- Feb 4, 2026 CVE Updated
- Feb 4, 2026 PoC Published
- Feb 5, 2026 EPSS Score
- Feb 7, 2026 EPSS Score
- Feb 9, 2026 EPSS Score
- Feb 12, 2026 EPSS Score
- Feb 14, 2026 EPSS Score
- Feb 16, 2026 EPSS Score
- Feb 18, 2026 EPSS Score
- Feb 20, 2026 EPSS Score
- Feb 22, 2026 EPSS Score