CVE-2026-78224

HIGHPre-NVD 8.28.2—
EchelonGraph scoreHIGH confidence

Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2026-09-11. a secondary CVSS source baseline 8.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.2Exploit: None knownExposed: 0

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

The XSLT Transformer Step builds a bare TransformerFactory without the proper security options set, so XXE injection can allow data exfiltration and denial-of-service attacks.

CVSS v3
8.2
EG Score
8.2(high)
EG Risk
52(Track)
EG Risk 52/100SSVC: 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
Severity82% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

September 11, 2026

Last Modified

September 18, 2026

Advisory Details (2)

Auto-updated Sep 11, 2026
Patch available. Sources: cisa.
generic

CSAF/csaf_files/OT/white/2026/icsma-26-253-01.json at develop · cisagov/CSAF · GitHub

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-253-01.json
cisa Patch Available

NextGen Healthcare Mirth Connect | CISA

https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-253-01

Vendor Advisories for CVE-2026-78224(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 / 38× 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 20:52 UTCEG score recompute
  2. 2026-09-20 20:52 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 08:36 UTCGHSA enrichment
  5. 2026-09-19 20:20 UTCEG score recompute
  6. 2026-09-19 20:20 UTCGHSA enrichment
  7. 2026-09-19 08:04 UTCGHSA enrichment
  8. 2026-09-18 19:49 UTCEG score recompute
  9. 2026-09-18 19:49 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 07:59 UTCGHSA enrichment
  12. 2026-09-17 19:43 UTCEG score recompute
  13. 2026-09-17 19:43 UTCGHSA enrichment
  14. 2026-09-17 06:43 UTCGHSA enrichment
  15. 2026-09-16 18:07 UTCEG score recompute
  16. 2026-09-16 18:07 UTCGHSA enrichment
  17. 2026-09-16 14:08 UTCEPSS rescore
  18. 2026-09-16 05:49 UTCEG score recompute
  19. 2026-09-16 05:49 UTCGHSA enrichment
  20. 2026-09-16 05:15 UTCEPSS rescore
  21. 2026-09-15 17:34 UTCGHSA enrichment
  22. 2026-09-15 05:17 UTCEG score recompute
  23. 2026-09-15 05:17 UTCGHSA enrichment
  24. 2026-09-15 03:12 UTCEPSS rescore
  25. 2026-09-15 03:12 UTCEPSS rescore
Show 13 more
  1. 2026-09-14 16:59 UTCGHSA enrichment
  2. 2026-09-14 04:44 UTCEG score recompute
  3. 2026-09-14 04:44 UTCGHSA enrichment
  4. 2026-09-13 16:29 UTCGHSA enrichment
  5. 2026-09-13 04:14 UTCGHSA enrichment
  6. 2026-09-12 15:58 UTCEG score recompute
  7. 2026-09-12 15:58 UTCGHSA enrichment
  8. 2026-09-12 03:43 UTCEG score recompute
  9. 2026-09-12 03:43 UTCGHSA enrichment
  10. 2026-09-11 15:28 UTCEG score recompute
  11. 2026-09-11 15:04 UTCEG score recompute
  12. 2026-09-11 14:35 UTCEG score recompute
  13. 2026-09-11 14:34 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-78224?
CVE-2026-78224 is a high vulnerability published on September 11, 2026. The XSLT Transformer Step builds a bare TransformerFactory without the proper security options set, so XXE injection can allow data exfiltration and denial-of-service attacks.
When was CVE-2026-78224 disclosed?
CVE-2026-78224 was first published in the National Vulnerability Database on September 11, 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-2026-78224 actively exploited?
CVE-2026-78224 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 62.5% of all scored CVEs.
What is the CVSS score of CVE-2026-78224?
CVE-2026-78224 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2026-78224?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78224, 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-2026-78224

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