GHSA-Q6VM-XQC9-V3FF Fission: Zip Slip in pkg/utils/zip.go:Unarchive allows fetcher to write outside the destination directory

Unarchive in pkg/utils/zip.go joined each archive entry name with the destination directory via filepath.Join and wrote the result without checking whether the resolved path stayed under the destination. A zip entry named ../../tmp/evil therefore landed at /tmp/evil. An attacker who could control...