apko vulnerabilities
3 known CVE vulnerabilities in apko, translated and rated.
- CVE-2026-42576Medium
In apko prior to version 1.2.7, the DiscoverKeys function in pkg/apk/apk/implementation.go unconditionally type-asserts JWKS keys as *rsa.PublicKey without checking the key type. If a repository JWKS endpoint returns a non-RSA key (e.g., EC), the unchecked assertion panics and crashes apko. This affects any workflow that initializes the APK database and fetches repository keys.
- CVE-2026-42575High
apko, a tool for building OCI container images from apk packages, prior to version 1.2.7 verifies the signature on APKINDEX.tar.gz but never compares individually downloaded .apk packages against the checksum recorded in the signed index. An attacker who can substitute download responses (compromised mirror, HTTP repository, poisoned CDN cache) can install arbitrary packages into built images.
- CVE-2026-42574High
Vulnerability in apko (versions 0.14.8 through before 1.2.5) allows a crafted .apk to install a TypeSymlink tar entry pointing outside the build root. Subsequent entries in the archive can traverse that symlink to reach host paths the build user can write to.