PT-2026-6267 · Apko · Apko

1Seal · Published 2026-02-03 · Updated 2026-02-20 · CVE-2026-25121

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions apko versions 0.14.8 through 1.1.0

Description apko is a tool that enables users to build and publish OCI container images from apk packages. A path traversal issue exists in apko’s dirFS filesystem abstraction between versions 0.14.8 and 1.1.0. An attacker providing a malicious APK package could create directories or symlinks outside the intended installation root. The MkdirAll, Mkdir, and Symlink methods within the pkg/apk/fs/rwosfs.go file utilize filepath.Join() without ensuring the resulting path remains within the base directory.

Recommendations Update to version 1.1.1 or later.

Exploit

Fix

Relative Path Traversal

Path traversal

Weakness Enumeration

CWE-23

CWE-22

Related Identifiers

CVE-2026-25121

GHSA-5G94-C2WX-8PXW

GO-2026-4405

SUSE-SU-2026:0403-1

Affected Products

Apko

References · 88

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25121.json · Exploit
• https://github.com/chainguard-dev/apko/commit/d8b7887a968a527791b3c591ae83928cb49a9f14 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-25121 · Security Note
• https://osv.dev/vulnerability/CVE-2026-25121 · Vendor Advisory
• https://osv.dev/vulnerability/GO-2026-4405 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-5g94-c2wx-8pxw · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0403-1 · Vendor Advisory
• https://github.com/chainguard-dev/apko · Note
• https://github.com/chainguard-dev/apko/security/advisories/GHSA-5g94-c2wx-8pxw · Note
• https://suse.com/security/cve/CVE-2026-24514 · Note
• https://twitter.com/CVEnew/status/2019182782585741427 · Twitter Post
• https://suse.com/security/cve/CVE-2026-24117 · Note
• https://suse.com/security/cve/CVE-2026-25145 · Note
• https://suse.com/security/cve/CVE-2026-23992 · Note
• https://suse.com/security/cve/CVE-2026-20897 · Note