GHSA-HCWR-PQ9G-RQ3M apko doesn't verify downloaded apk packages against APKINDEX checksum (package substitution possible)

apko verifies the signature on APKINDEX.tar.gz but never compares individually downloaded .apk packages against the checksum recorded in the signed index. The checksum is parsed and available via ChecksumString, and the downloaded package control hash is computed, but the two values are never...