VULNERABILITY INTELLIGENCE
CVE-2026-42576
CVSS score6.5 MEDIUM
EPSS probability0.25%
CISA KEVNot currently listed
Published2026-05-09
Last modified2026-07-24
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Description
apko allows users to build and publish OCI container images built from apk packages. Prior to version 1.2.7, DiscoverKeys 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. This issue has been patched in version 1.2.7.
Weakness classification
- CWE-704: Incorrect Type Conversion or Cast