File Permission Misconfiguration in apko by Chainguard
CVE-2025-53945

7HIGH

Key Information:

Vendor

Chainguard-dev

Status
Apko
Vendor
CVE Published:
18 July 2025

What is CVE-2025-53945?

The apko utility, utilized for building and publishing OCI container images from apk packages, has a vulnerability related to file permissions. In versions 0.27.0 through 0.29.5, critical files were incorrectly set with broad write permissions (0666). This misconfiguration poses a risk of unauthorized root escalation, allowing malicious users to exploit this weakness. Users are encouraged to update to version 0.29.5, where the issue has been addressed.

Affected Version(s)

apko >= 0.27.0, < 0.29.5

References

https://github.com/chainguard-dev/apko/security/advisorie...
x_refsource_CONFIRM
https://github.com/chainguard-dev/apko/commit/04f37e2d50d...
x_refsource_MISC
https://github.com/chainguard-dev/apko/commit/aedb0772d6b...
x_refsource_MISC

CVSS V3.1

Score:
7
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2025-53945 : File Permission Misconfiguration in apko by Chainguard