CVE-2026-84197

CRITICALPre-NVD 9.29.2—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 89% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
9.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.2Exploit: None knownExposed: 0

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

In Eclipse Ditto's Node.js JavaScript client, all released versions of @eclipse-ditto/ditto-javascript-client-node from 2.0.0 to 3.9.0 and of its predecessor package @eclipse-ditto/ditto-javascript-client-node_1.0 from 1.0.0 to 2.1.0, the WebSocket transport hard-codes rejectUnauthorized: false when creating the underlying ws WebSocket. Certificate chain and hostname validation are therefore disabled for every wss:// connection, and no builder option, constructor argument or environment variable lets an application turn validation back on. An attacker in a position to intercept the connection can present an arbitrary certificate, complete the TLS handshake, read the credentials that the configured authentication provider sends in the Authorization header of the WebSocket upgrade request, and read, alter or inject Ditto Protocol messages for the lifetime of the connection. The Java client, the browser/DOM JavaScript client and the HTTP transport of the Node.js client are not affected.

CVSS v3
9.2
EG Score
9.2(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity92% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
11%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 9, 2026

Advisory Details (1)

Auto-updated Sep 15, 2026
No patch confirmed yet.
generic

[Eclipse Ditto] TLS certificate validation disabled for all Node.js WebSocket connections (#660) · Issues · Eclipse Projects Security / vulnerability-reports · GitLab

https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/660

Vendor Advisories for CVE-2026-84197(1)

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

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 52× in last 7d / 82× 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. 2026-09-19 06:18 UTCGHSA enrichment
  2. 2026-09-19 02:02 UTCGHSA enrichment
  3. 2026-09-18 21:47 UTCEG score recompute
  4. 2026-09-18 21:47 UTCGHSA enrichment
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-18 17:32 UTCGHSA enrichment
  7. 2026-09-18 13:17 UTCGHSA enrichment
  8. 2026-09-18 09:02 UTCGHSA enrichment
  9. 2026-09-18 04:47 UTCGHSA enrichment
  10. 2026-09-18 00:32 UTCGHSA enrichment
  11. 2026-09-17 20:17 UTCEG score recompute
  12. 2026-09-17 20:17 UTCGHSA enrichment
  13. 2026-09-17 19:32 UTCEPSS rescore
  14. 2026-09-17 13:00 UTCGHSA enrichment
  15. 2026-09-17 08:45 UTCGHSA enrichment
  16. 2026-09-17 04:30 UTCGHSA enrichment
  17. 2026-09-17 00:15 UTCGHSA enrichment
  18. 2026-09-16 19:59 UTCGHSA enrichment
  19. 2026-09-16 15:35 UTCEG score recompute
  20. 2026-09-16 15:35 UTCGHSA enrichment
  21. 2026-09-16 14:09 UTCEPSS rescore
  22. 2026-09-16 11:18 UTCGHSA enrichment
  23. 2026-09-16 07:04 UTCEG score recompute
  24. 2026-09-16 07:03 UTCGHSA enrichment
  25. 2026-09-16 05:15 UTCEPSS rescore
Show 57 more
  1. 2026-09-16 02:48 UTCGHSA enrichment
  2. 2026-09-15 22:32 UTCGHSA enrichment
  3. 2026-09-15 18:17 UTCGHSA enrichment
  4. 2026-09-15 13:53 UTCGHSA enrichment
  5. 2026-09-15 09:38 UTCGHSA enrichment
  6. 2026-09-15 05:22 UTCEG score recompute
  7. 2026-09-15 05:22 UTCGHSA enrichment
  8. 2026-09-15 03:12 UTCEPSS rescore
  9. 2026-09-15 03:12 UTCEPSS rescore
  10. 2026-09-15 01:02 UTCGHSA enrichment
  11. 2026-09-14 20:47 UTCGHSA enrichment
  12. 2026-09-14 16:32 UTCGHSA enrichment
  13. 2026-09-14 12:17 UTCGHSA enrichment
  14. 2026-09-14 08:01 UTCGHSA enrichment
  15. 2026-09-14 03:46 UTCGHSA enrichment
  16. 2026-09-13 23:31 UTCGHSA enrichment
  17. 2026-09-13 19:16 UTCEG score recompute
  18. 2026-09-13 19:16 UTCGHSA enrichment
  19. 2026-09-13 15:01 UTCGHSA enrichment
  20. 2026-09-13 10:46 UTCGHSA enrichment
  21. 2026-09-13 06:30 UTCGHSA enrichment
  22. 2026-09-13 02:15 UTCGHSA enrichment
  23. 2026-09-12 21:59 UTCGHSA enrichment
  24. 2026-09-12 17:43 UTCEG score recompute
  25. 2026-09-12 17:43 UTCGHSA enrichment
  26. 2026-09-12 13:28 UTCGHSA enrichment
  27. 2026-09-12 09:13 UTCGHSA enrichment
  28. 2026-09-12 04:58 UTCGHSA enrichment
  29. 2026-09-12 00:42 UTCGHSA enrichment
  30. 2026-09-11 20:26 UTCGHSA enrichment
  31. 2026-09-11 16:11 UTCEG score recompute
  32. 2026-09-11 16:11 UTCGHSA enrichment
  33. 2026-09-11 14:53 UTCEPSS rescore
  34. 2026-09-11 14:53 UTCEPSS rescore
  35. 2026-09-11 11:55 UTCEG score recompute
  36. 2026-09-11 11:55 UTCGHSA enrichment
  37. 2026-09-11 07:39 UTCGHSA enrichment
  38. 2026-09-11 03:24 UTCGHSA enrichment
  39. 2026-09-10 23:08 UTCGHSA enrichment
  40. 2026-09-10 18:53 UTCGHSA enrichment
  41. 2026-09-10 14:36 UTCGHSA enrichment
  42. 2026-09-10 10:21 UTCEG score recompute
  43. 2026-09-10 10:21 UTCGHSA enrichment
  44. 2026-09-10 06:06 UTCGHSA enrichment
  45. 2026-09-10 01:48 UTCGHSA enrichment
  46. 2026-09-09 21:32 UTCEG score recompute
  47. 2026-09-09 21:32 UTCGHSA enrichment
  48. 2026-09-09 20:55 UTCEG score recompute
  49. 2026-09-09 20:55 UTCGHSA enrichment
  50. 2026-09-09 16:02 UTCGHSA enrichment
  51. 2026-09-09 13:43 UTCGHSA enrichment
  52. 2026-09-09 09:20 UTCGHSA enrichment
  53. 2026-09-09 05:05 UTCGHSA enrichment
  54. 2026-09-09 00:47 UTCGHSA enrichment
  55. 2026-09-08 20:32 UTCEG score recompute
  56. 2026-09-08 20:15 UTCEG score recompute
  57. 2026-09-08 20:14 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-84197?
CVE-2026-84197 is a critical vulnerability published on September 8, 2026. In Eclipse Ditto's Node.js JavaScript client, all released versions of @eclipse-ditto/ditto-javascript-client-node from 2.0.0 to 3.9.0 and of its predecessor package @eclipse-ditto/ditto-javascript-client-node_1.0 from 1.0.0 to 2.1.0, the WebSocket transport hard-codes rejectUnauthorized: false…
When was CVE-2026-84197 disclosed?
CVE-2026-84197 was first published in the National Vulnerability Database on September 8, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-84197 actively exploited?
CVE-2026-84197 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 89.2% of all scored CVEs.
What is the CVSS score of CVE-2026-84197?
CVE-2026-84197 has a CVSS v3 base score of 9.2 (NVD).
How do I remediate CVE-2026-84197?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84197, 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

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