Medium 6.5Published Sep 14, 2026

CVE-2026-82433Apache Storm Nimbus, Apache Storm UI: Disclosure of Unredacted Daemon Configuration via Nimbus and the UI

Updated under an hour ago (2026-10-19 09:50 UTC)

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It affects Apache Software Foundation Apache Storm Nimbus and 1 other product. Add what you run to find out whether that includes you.

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Every CVE for Apache Software Foundation Apache Storm Nimbus

Exploited in the last 30 days

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.

CVSS: 6.5 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-522, CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: apache
NVD analysis: Deferred
Record last updated: Sep 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Apache Software Foundation Apache Storm Nimbus apache_software_foundation:apache_storm_nimbus (from the name)	from 3.0.0 before 3.1.0	CNA record
Apache Software Foundation Apache Storm UI apache_software_foundation:apache_storm_ui (from the name)	from 3.0.0 before 3.1.0	CNA record

References

https://lists.apache.org/thread/ohw4s30rhm2r20498c0zbqxyy7xd5hxlvendor-advisory
http://www.openwall.com/lists/oss-security/2026/09/13/13

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.