CVE-2026-84860

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-16. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

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

ScadaLTS 2.8.1-release-candidate build 0 is affected by an Authorization Bypass

Spring Security gates DWR endpoints by URL path pattern, but DWR itself dispatches method calls based on the POST body parameters c0-scriptName and c0-methodName. The crossDomainSessionSecurity setting in web.xml is set to false, which disables DWR's built-in origin validation. This means any authenticated user can invoke any DWR method (regardless of the URL-based access control) by sending their request to a URL they are permitted to access (e.g. MiscDwr.initializeLongPoll.dwr) while targeting a restricted class in the POST body.

This is the systemic root cause that enables multiple other findings to be exploited as a low privilege user.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
41%
KEV
Not listed

Published

September 16, 2026

Last Modified

September 18, 2026

Advisory Details (1)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic

ScadaLTS Multiple Vulnerabilities - Research Advisory | Tenable®

https://www.tenable.com/security/research/tra-2026-60

Vendor Advisories for CVE-2026-84860(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 24× in last 7d / 24× 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. 2026-09-21 07:35 UTCEG score recompute
  2. 2026-09-21 07:35 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 19:36 UTCGHSA enrichment
  5. 2026-09-20 07:37 UTCGHSA enrichment
  6. 2026-09-19 19:22 UTCEG score recompute
  7. 2026-09-19 19:22 UTCGHSA enrichment
  8. 2026-09-19 07:23 UTCEG score recompute
  9. 2026-09-19 07:23 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 19:24 UTCGHSA enrichment
  12. 2026-09-18 07:25 UTCEG score recompute
  13. 2026-09-18 07:25 UTCGHSA enrichment
  14. 2026-09-17 19:32 UTCEPSS rescore
  15. 2026-09-17 19:26 UTCEG score recompute
  16. 2026-09-17 19:26 UTCGHSA enrichment
  17. 2026-09-17 18:47 UTCEG score recompute
  18. 2026-09-17 18:47 UTCGHSA enrichment
  19. 2026-09-17 15:19 UTCGHSA enrichment
  20. 2026-09-17 03:19 UTCEG score recompute
  21. 2026-09-17 03:19 UTCGHSA enrichment
  22. 2026-09-16 15:20 UTCEG score recompute
  23. 2026-09-16 15:01 UTCEG score recompute
  24. 2026-09-16 15:00 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-84860?
CVE-2026-84860 is a high vulnerability published on September 16, 2026. ScadaLTS 2.8.1-release-candidate build 0 is affected by an Authorization Bypass Spring Security gates DWR endpoints by URL path pattern, but DWR itself dispatches method calls based on the POST body parameters c0-scriptName and c0-methodName. The crossDomainSessionSecurity setting in web.xml is set…
When was CVE-2026-84860 disclosed?
CVE-2026-84860 was first published in the National Vulnerability Database on September 16, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-84860 actively exploited?
CVE-2026-84860 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 59.2% of all scored CVEs.
What is the CVSS score of CVE-2026-84860?
CVE-2026-84860 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-84860?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84860, 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-2026-84860

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