CVE-2025-53945apko has incorrect permission (0666) in /etc/ld.so.cache and other files

Description

apko allows users to build and publish OCI container images built from apk packages. Starting in version 0.27.0 and prior to version 0.29.5, critical files were inadvertently set to 0666, which could likely be abused for root escalation. Version 0.29.5 contains a fix for the issue.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://github.com/chainguard-dev/apko/security/advisories/GHSA-x6ph-r535-3vjw
• https://github.com/chainguard-dev/apko/commit/04f37e2d50d5a502e155788561fb7d40de705bd9
• https://github.com/chainguard-dev/apko/commit/aedb0772d6bf6e74d8f17690946dbc791d0f6af3
• https://github.com/chainguard-dev/apko/releases/tag/v0.27.0
• https://github.com/chainguard-dev/apko/releases/tag/v0.29.5