Skip to content
CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2026-42576

apko `DiscoverKeys` has a panic on non-rsa jwks key that causes crash during key discovery

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

chainguard-dev apko

  • < 1.2.7affected

References