CVE-2026-77393

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-05. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 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: 1%CVSS: 8.8Exploit: None knownExposed: 0

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

In Ignition 8.1.53 and earlier, the Gateway "Create Project Role(s)" setting shipped blank, which permitted any authenticated user to create projects (if they can execute gateway scripts). Ignition 8.1.54 restricts project creation to Designer sessions and no longer relies on this setting. The 8.3 series is not affected.

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%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

September 4, 2026

Last Modified

September 8, 2026

Advisory Details (3)

Auto-updated Sep 4, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
generic

CSAF/csaf_files/OT/white/2026/icsa-26-246-06.json at develop · cisagov/CSAF · GitHub

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-246-06.json
cisa Patch Available

Inductive Automation Ignition | CISA

https://www.cisa.gov/news-events/ics-advisories/icsa-26-246-06
generic🔴 Active Exploitation

Inductive Automation Trust Center | Powered by SafeBase

https://security.inductiveautomation.com/?tcuUid=34477620-731d-4b70-b22b-9450f9a659a3

Vendor Advisories for CVE-2026-77393(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 25× in last 7d / 64× 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 05:53 UTCGHSA enrichment
  2. 2026-09-19 18:23 UTCEG score recompute
  3. 2026-09-19 18:23 UTCGHSA enrichment
  4. 2026-09-19 06:53 UTCEG score recompute
  5. 2026-09-19 06:52 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 19:22 UTCGHSA enrichment
  8. 2026-09-18 07:52 UTCGHSA enrichment
  9. 2026-09-17 20:22 UTCEG score recompute
  10. 2026-09-17 20:22 UTCGHSA enrichment
  11. 2026-09-17 08:49 UTCGHSA enrichment
  12. 2026-09-16 21:19 UTCEG score recompute
  13. 2026-09-16 21:19 UTCGHSA enrichment
  14. 2026-09-16 14:08 UTCEPSS rescore
  15. 2026-09-16 09:00 UTCEG score recompute
  16. 2026-09-16 09:00 UTCGHSA enrichment
  17. 2026-09-16 05:15 UTCEPSS rescore
  18. 2026-09-15 20:52 UTCGHSA enrichment
  19. 2026-09-15 09:07 UTCEG score recompute
  20. 2026-09-15 09:07 UTCGHSA enrichment
  21. 2026-09-15 03:12 UTCEPSS rescore
  22. 2026-09-14 21:37 UTCGHSA enrichment
  23. 2026-09-14 10:07 UTCGHSA enrichment
  24. 2026-09-13 22:37 UTCEG score recompute
  25. 2026-09-13 22:37 UTCGHSA enrichment
Show 39 more
  1. 2026-09-13 11:07 UTCGHSA enrichment
  2. 2026-09-12 23:37 UTCEG score recompute
  3. 2026-09-12 23:37 UTCGHSA enrichment
  4. 2026-09-12 15:02 UTCEPSS rescore
  5. 2026-09-12 12:07 UTCGHSA enrichment
  6. 2026-09-12 00:37 UTCEG score recompute
  7. 2026-09-12 00:37 UTCGHSA enrichment
  8. 2026-09-11 14:53 UTCEPSS rescore
  9. 2026-09-11 13:07 UTCEG score recompute
  10. 2026-09-11 13:07 UTCGHSA enrichment
  11. 2026-09-11 01:37 UTCGHSA enrichment
  12. 2026-09-10 14:07 UTCEG score recompute
  13. 2026-09-10 14:07 UTCGHSA enrichment
  14. 2026-09-10 09:35 UTCEPSS rescore
  15. 2026-09-10 02:37 UTCGHSA enrichment
  16. 2026-09-09 15:07 UTCGHSA enrichment
  17. 2026-09-09 03:36 UTCEG score recompute
  18. 2026-09-09 03:36 UTCGHSA enrichment
  19. 2026-09-08 22:01 UTCEPSS rescore
  20. 2026-09-08 16:06 UTCGHSA enrichment
  21. 2026-09-08 11:27 UTCGHSA enrichment
  22. 2026-09-07 23:57 UTCEG score recompute
  23. 2026-09-07 23:57 UTCGHSA enrichment
  24. 2026-09-07 12:27 UTCEG score recompute
  25. 2026-09-07 12:26 UTCGHSA enrichment
  26. 2026-09-07 11:28 UTCEG score recompute
  27. 2026-09-07 11:28 UTCGHSA enrichment
  28. 2026-09-07 08:09 UTCGHSA enrichment
  29. 2026-09-06 20:39 UTCEG score recompute
  30. 2026-09-06 20:39 UTCGHSA enrichment
  31. 2026-09-06 13:48 UTCEPSS rescore
  32. 2026-09-06 09:08 UTCGHSA enrichment
  33. 2026-09-05 21:34 UTCEG score recompute
  34. 2026-09-05 21:34 UTCGHSA enrichment
  35. 2026-09-05 10:05 UTCEG score recompute
  36. 2026-09-05 10:04 UTCGHSA enrichment
  37. 2026-09-04 22:31 UTCEG score recompute
  38. 2026-09-04 21:20 UTCEG score recompute
  39. 2026-09-04 21:19 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-77393?
CVE-2026-77393 is a high vulnerability published on September 4, 2026. In Ignition 8.1.53 and earlier, the Gateway "Create Project Role(s)" setting shipped blank, which permitted any authenticated user to create projects (if they can execute gateway scripts). Ignition 8.1.54 restricts project creation to Designer sessions and no longer relies on this setting. The 8.3…
When was CVE-2026-77393 disclosed?
CVE-2026-77393 was first published in the National Vulnerability Database on September 4, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-77393 actively exploited?
CVE-2026-77393 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 57.8% of all scored CVEs.
What is the CVSS score of CVE-2026-77393?
CVE-2026-77393 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-77393?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-77393, 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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