Trivy: Helm chart tar bomb causes OOM via unbounded io.ReadAll in parser

Summary When Trivy scans a Helm chart archive .tgz, its custom tar unpacker reads each entry with io.ReadAlltr and no size limit. An attacker who can place a malicious .tgz file in the scanned path can craft a small compressed archive that decompresses to gigabytes, causing the Trivy process to b...