CVE-2026-66083

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-09-29. 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: 0.2%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The /datasources/unauth-datasource endpoint does not properly enforce data source authorization. An authenticated user can invoke this endpoint to obtain information about data sources they are not authorized to access. This may expose data source configuration and other sensitive metadata, depending on the fields returned by the endpoint.

This issue affects Apache DolphinScheduler: before 3.4.3.

Users are recommended to upgrade to version 3.4.3, which fixes the issue.

CVSS v3
6.5
EG Score
6.5MEDIUMhigh confidence
EG Risk
29
EG Risk 29/100CISA SSVC

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%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
12th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 29, 2026

Last Modified

September 29, 2026

Advisory Details (1)

Auto-updated Sep 29, 2026
Fix named in the CVE record.
generic

Pony Mail

https://lists.apache.org/thread/b6brfom0jmy9kdt40qrn6dq0x4v2wxdr

Vendor Advisories for CVE-2026-66083(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 28× in last 7d / 28× 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. 2026-10-05 07:42 UTCEG score recompute
  2. 2026-10-05 07:42 UTCGHSA enrichment
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-04 05:37 UTCEG score recompute
  5. 2026-10-04 05:37 UTCGHSA enrichment
  6. 2026-10-03 14:26 UTCEPSS rescore
  7. 2026-10-03 03:34 UTCEG score recompute
  8. 2026-10-03 03:34 UTCGHSA enrichment
  9. 2026-10-02 17:56 UTCEPSS rescore
  10. 2026-10-02 01:30 UTCEG score recompute
  11. 2026-10-02 01:30 UTCGHSA enrichment
  12. 2026-10-01 19:50 UTCEPSS rescore
  13. 2026-09-30 23:26 UTCEG score recompute
  14. 2026-09-30 23:26 UTCGHSA enrichment
  15. 2026-09-30 15:03 UTCEPSS rescore
  16. 2026-09-29 21:21 UTCGHSA enrichment
  17. 2026-09-29 20:30 UTCEG score recompute▲ 6.50
  18. 2026-09-29 20:29 UTCGHSA enrichment
  19. 2026-09-29 20:29 UTCMITRE cvelistV5CVSS v3 → 6.5 · severity → MEDIUM
  20. 2026-09-29 16:36 UTCGHSA enrichment
  21. 2026-09-29 16:05 UTCGHSA enrichment
  22. 2026-09-29 16:04 UTCNVD update
  23. 2026-09-29 15:28 UTCGHSA enrichment
  24. 2026-09-29 15:28 UTCMITRE cvelistV5
  25. 2026-09-29 12:33 UTCGHSA enrichment
Show 3 more
  1. 2026-09-29 12:33 UTCNVD update
  2. 2026-09-29 11:55 UTCEG score recompute
  3. 2026-09-29 11:53 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-66083?
CVE-2026-66083 is a medium vulnerability published on September 29, 2026. The /datasources/unauth-datasource endpoint does not properly enforce data source authorization. An authenticated user can invoke this endpoint to obtain information about data sources they are not authorized to access. This may expose data source configuration and other sensitive metadata,…
When was CVE-2026-66083 disclosed?
CVE-2026-66083 was first published on September 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-66083 actively exploited?
CVE-2026-66083 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (12th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-66083?
CVE-2026-66083 has a CVSS v3.1 base score of 6.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-66083?
A fix for CVE-2026-66083 is available — its CVE record says: "Users are recommended to upgrade to version 3.4.3, which fixes the issue." The vendor advisories EchelonGraph has for CVE-2026-66083 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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