CVE-2026-82427: Description A topology's `topology.blobstore.map` lets the submitter choose a local name for each blob that the supervi

A vulnerability in Apache Storm's blob storage mapping allows someone submitting a topology (a distributed computing job) to use path traversal (using `../` to navigate directories) in blob names to delete arbitrary files owned by the supervisor process or create malicious symlinks (shortcuts) that could let attackers run code as another user, bypassing the isolation that's supposed to keep different users' jobs separate.