CVE-2026-82428 Apache Storm Client: Cross-Tenant Dependency Jar Substitution via Predictable Blob Keys

Description Dependency artifacts uploaded with storm jar --artifacts were stored under a blob key derived only from the Maven coordinate, for example dep---.jar. The key was therefore identical for every user of the cluster and predictable in advance. When the blob already existed, the uploader...

CVE-2026-82428

The Apache Storm Client is vulnerable to cross-tenant dependency jar substitution due to predictable blob keys. When using the storm jar --artifacts feature, dependency artifacts are stored under keys derived solely from Maven coordinates (e.g., dep---.jar). Because these keys are predictable and...

CVE-2026-82431

The Apache Storm cluster is vulnerable to an authorization bypass in the SimpleACLAuthorizer component. The vulnerability occurs because the authorizer returns early when the nimbus.users list is empty, failing to evaluate the nimbus.groups list. Consequently, operators who configure access restr...

CVE-2026-82431 Apache Storm Client: Authorization Bypass When nimbus.groups Is Configured Without nimbus.users

Description SimpleACLAuthorizer evaluated the user-level command set by returning early when nimbus.users was empty, before nimbus.groups was considered. An operator who restricted cluster access by group alone, leaving nimbus.users unset, therefore received no restriction at all: every...