High [CVE-2026-82428] Apache Storm: Description Dependency artifacts uploaded with `storm jar --artifacts` were stored under a blob key derived only from the Maven coordinate, for example `dep---.jar`
This high-severity Apache Software Foundation advisory covers CVE-2026-82428; related products: Apache Storm.
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Summary
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 caught `KeyAlreadyExistsException` and silently reused it, with no check that the existing blob's content
or owner matched the artifact the submitter had resolved.
A user who uploaded a blob under such a key first therefore controlled the bytes that every later submitter of the same coordinate would receive on the worker classpath, resulting in code execution inside another
tenant's topology.
This affects deployments where more than one principal may create blobs and where the `--artifacts` dependency feature is used.
Affected product named by the advisory: Apache Storm.
- Apache Storm Client 3.0.0 before 3.1.0
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Mitigation Upgrade to 3.1.0, where each uploaded artifact receives a key carrying a freshly generated UUID and a pre-existing blob is no longer silently reused.
- Users who cannot upgrade immediately should avoid the `--artifacts` mechanism in multi-tenant clusters and distribute dependencies inside the topology jar instead.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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