Answer in brief
CVE-2026-82433 records a Medium severity (CVSS 6.5) vulnerability in Apache Storm Nimbus, Apache Storm UI: Disclosure of Unredacted Daemon Configuration via Nimbus and the UI. The current sources do not mark it as known exploited. The current feed maps Apache Software Foundation/Apache Storm Nimbus (generic), Apache Software Foundation/Apache Storm UI (generic), Apache Software Foundation/org.apache.storm:storm-server (generic), Apache Software Foundation/org.apache.storm:storm-webapp (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Apache Software Foundation/Apache Storm Nimbus (generic), Apache Software Foundation/Apache Storm UI (generic), Apache Software Foundation/org.apache.storm:storm-server (generic), Apache Software Foundation/org.apache.storm:storm-webapp (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Apache Software Foundation/Apache Storm Nimbusgeneric | >=3.0.0 <3.1.0 | 3.1.0 |
| Apache Software Foundation/Apache Storm UIgeneric | >=3.0.0 <3.1.0 | 3.1.0 |
| Apache Software Foundation/org.apache.storm:storm-servergeneric | >=3.0.0 <3.1.0 | 3.1.0 |
| Apache Software Foundation/org.apache.storm:storm-webappgeneric | >=3.0.0 <3.1.0 | 3.1.0 |
Published upstream
Sep 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 14, 2026
Description `getNimbusConf` returned the complete daemon configuration without redaction after only a user-level authorization check. Where the cluster is configured with them, that response includes `storm.zookeeper.auth.payload` and the keystore and truststore passwords for the Thrift, Netty and ZooKeeper TLS configuration. The project masks passwords elsewhere before display, so the omission here is inconsistent rather than intended. The UI endpoint `/api/v1/cluster/configuration` compounded this. It carried no `@AuthNimbusOp` annotation, and the authorization filter treated a missing annotation as "no gate required" and returned immediately, so the endpoint applied no per-user check at all and proxied the request under the UI daemon's own principal. Any user able to pass `ui.filter` therefore received the full configuration, including principals that Nimbus itself would have refused. Mitigation Upgrade to 3.1.0, where credential-bearing values are masked before the configuration is served and where every UI API endpoint must declare its authorization explicitly. Users who cannot upgrade immediately should place the UI behind an authenticating reverse proxy that restricts `/api/v1/cluster/configuration`, and should rotate the ZooKeeper authentication payload and any TLS keystore or truststore passwords that were reachable through it. Credit The ASF -- found using Claude agents to study the security of open-source projects, validated and reported by Apache Storm.
Quoted source text, attributed separately from HOL analysis.