CVE-2026-42574
Published:May 09, 2026
Updated:May 16, 2026
apko allows users to build and publish OCI container images built from apk packages. From version 0.14.8 to before version 1.2.5, a crafted .apk could install a TypeSymlink tar entry whose target pointed outside the build root, and a subsequent directory-creation or file-write entry in the same or later archive could traverse that symlink to reach host paths the build user could write to. This issue has been patched in version 1.2.5.
Affected Packages
https://github.com/chainguard-dev/apko.git (GITHUB):
Affected version(s) >=v0.14.8 <v1.2.5Fix Suggestion:
Update to version v1.2.5chainguard.dev/apko (GO):
Affected version(s) >=v0.14.8 <v1.2.5Fix Suggestion:
Update to version v1.2.5chainguard.dev/apko (GO):
Affected version(s) >=v0.14.8 <v1.2.5Fix Suggestion:
Update to version v1.2.5Related Resources (6)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
EPSS
Base Score:
0.07