CVE-2026-82433

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-09-14. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 5 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
6.5
EG Score
6.5(high)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

September 14, 2026

Last Modified

September 14, 2026

Advisory Details (2)

Auto-updated Sep 14, 2026
No patch confirmed yet.
generic

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

http://www.openwall.com/lists/oss-security/2026/09/13/13
generic
https://lists.apache.org/thread/ohw4s30rhm2r20498c0zbqxyy7xd5hxl

Vendor Advisories for CVE-2026-82433(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 23× in last 7d / 23× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-20 20:16 UTCEPSS rescore
  2. 2026-09-20 10:25 UTCEG score recompute
  3. 2026-09-20 10:25 UTCGHSA enrichment
  4. 2026-09-19 12:20 UTCEG score recompute
  5. 2026-09-19 12:20 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 14:16 UTCEG score recompute
  8. 2026-09-18 14:16 UTCGHSA enrichment
  9. 2026-09-17 16:01 UTCGHSA enrichment
  10. 2026-09-16 17:56 UTCEG score recompute
  11. 2026-09-16 17:56 UTCGHSA enrichment
  12. 2026-09-16 14:08 UTCEPSS rescore
  13. 2026-09-16 05:15 UTCEPSS rescore
  14. 2026-09-15 19:08 UTCEG score recompute
  15. 2026-09-15 19:07 UTCGHSA enrichment
  16. 2026-09-14 21:03 UTCGHSA enrichment
  17. 2026-09-14 20:24 UTCGHSA enrichment
  18. 2026-09-14 20:15 UTCEG score recompute▲ 6.50
  19. 2026-09-14 20:15 UTCGHSA enrichment
  20. 2026-09-14 20:14 UTCMITRE cvelistV5CVSS v3 → 6.5 · severity → MEDIUM
  21. 2026-09-14 15:21 UTCNVD update
  22. 2026-09-14 14:25 UTCEG score recompute
  23. 2026-09-14 14:24 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-82433?
CVE-2026-82433 is a medium vulnerability published on September 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…
When was CVE-2026-82433 disclosed?
CVE-2026-82433 was first published in the National Vulnerability Database on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-82433 actively exploited?
CVE-2026-82433 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 64.3% of all scored CVEs.
What is the CVSS score of CVE-2026-82433?
CVE-2026-82433 has a CVSS v3.1 base score of 6.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-82433?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-82433, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-82433

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