CVE-2026-82441

Apache Storm Nimbus accepts unvalidated dependency_jars and dependency_artifacts key lists from topology submissions, leading to two distinct issues. First, during topology cleanup Nimbus deletes the listed keys under its own subject (bypassing the blobstore ACL check), so a submitter can delete ...

CVE-2026-82441 Apache Storm Nimbus: Cross-Tenant Blob Deletion and Cluster Denial of Service via Unvalidated Topology Dependency Keys

Description A submitted topology carries two lists of blobstore keys, dependencyjars and dependencyartifacts, which the client fills in after uploading the corresponding blobs. Nimbus performed no validation of their contents on the submission path, yet acts on them in two places. During cleanup ...