CVE-2026-85169

HIGHNVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-03. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
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: 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.

n8n versions before 1.123.73, 2.35.4, and 2.36.2 contain an expression sandbox escape in the $fromAI handler. $fromAI resolved a caller-supplied placeholder name without requiring it to be an own property and admitted reserved keys; against a primitive input value it returned a live host-prototype reference. An attacker with workflow-build privilege can walk the prototype chain to the Function constructor and compile/execute arbitrary code in the main n8n process, leading to remote code execution.

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
57%
KEV
Not listed

Published

September 3, 2026

Last Modified

September 18, 2026

Advisory Details (2)

Auto-updated Sep 3, 2026
Patch available. Sources: github.
generic

n8n before 1.123.73 Remote Code Execution via $fromAI Prototype Leak | Advisories | VulnCheck

https://www.vulncheck.com/advisories/n8n-before-1.123.73-remote-code-execution-via-fromai-prototype-leak
github Patch Available

Expression Sandbox Escape via $fromAI Prototype Leak Leads to Host RCE · Advisory · n8n-io/n8n · GitHub

https://github.com/n8n-io/n8n/security/advisories/GHSA-9x83-43r8-5hwc

Vendor Advisories for CVE-2026-85169(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 30× in last 7d / 94× 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. 2026-09-25 05:51 UTCGHSA enrichment
  2. 2026-09-24 18:31 UTCEG score recompute
  3. 2026-09-24 18:31 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 07:11 UTCGHSA enrichment
  6. 2026-09-23 19:51 UTCEG score recompute
  7. 2026-09-23 19:51 UTCGHSA enrichment
  8. 2026-09-23 17:54 UTCEPSS rescore
  9. 2026-09-23 08:32 UTCGHSA enrichment
  10. 2026-09-22 21:11 UTCEG score recompute
  11. 2026-09-22 21:11 UTCGHSA enrichment
  12. 2026-09-22 16:01 UTCEPSS rescore
  13. 2026-09-22 09:51 UTCGHSA enrichment
  14. 2026-09-21 22:31 UTCEG score recompute
  15. 2026-09-21 22:31 UTCGHSA enrichment
  16. 2026-09-21 21:09 UTCEPSS rescore
  17. 2026-09-21 11:11 UTCGHSA enrichment
  18. 2026-09-20 23:51 UTCEG score recompute
  19. 2026-09-20 23:51 UTCGHSA enrichment
  20. 2026-09-20 20:16 UTCEPSS rescore
  21. 2026-09-20 12:31 UTCGHSA enrichment
  22. 2026-09-20 01:04 UTCEG score recompute
  23. 2026-09-20 01:04 UTCGHSA enrichment
  24. 2026-09-19 13:44 UTCGHSA enrichment
  25. 2026-09-19 02:24 UTCEG score recompute
Show 69 more
  1. 2026-09-19 02:23 UTCGHSA enrichment
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-18 15:04 UTCEG score recompute▲ 0.10
  4. 2026-09-18 15:03 UTCGHSA enrichment
  5. 2026-09-18 15:02 UTCNVD updateCVSS v3 → 8.8
  6. 2026-09-18 07:56 UTCGHSA enrichment
  7. 2026-09-17 20:36 UTCEG score recompute
  8. 2026-09-17 20:36 UTCGHSA enrichment
  9. 2026-09-17 19:32 UTCEPSS rescore
  10. 2026-09-17 08:41 UTCGHSA enrichment
  11. 2026-09-16 21:21 UTCEG score recompute
  12. 2026-09-16 21:21 UTCGHSA enrichment
  13. 2026-09-16 14:09 UTCEPSS rescore
  14. 2026-09-16 09:42 UTCEG score recompute
  15. 2026-09-16 09:42 UTCGHSA enrichment
  16. 2026-09-16 05:15 UTCEPSS rescore
  17. 2026-09-15 22:22 UTCGHSA enrichment
  18. 2026-09-15 11:00 UTCEG score recompute
  19. 2026-09-15 11:00 UTCGHSA enrichment
  20. 2026-09-15 03:12 UTCEPSS rescore
  21. 2026-09-15 03:12 UTCEPSS rescore
  22. 2026-09-14 23:39 UTCGHSA enrichment
  23. 2026-09-14 12:19 UTCGHSA enrichment
  24. 2026-09-14 00:59 UTCEG score recompute
  25. 2026-09-14 00:59 UTCGHSA enrichment
  26. 2026-09-13 13:39 UTCGHSA enrichment
  27. 2026-09-13 02:19 UTCEG score recompute
  28. 2026-09-13 02:19 UTCGHSA enrichment
  29. 2026-09-12 14:59 UTCGHSA enrichment
  30. 2026-09-12 03:39 UTCGHSA enrichment
  31. 2026-09-11 16:19 UTCEG score recompute
  32. 2026-09-11 16:19 UTCGHSA enrichment
  33. 2026-09-11 14:53 UTCEPSS rescore
  34. 2026-09-11 14:53 UTCEPSS rescore
  35. 2026-09-11 04:59 UTCGHSA enrichment
  36. 2026-09-10 17:39 UTCEG score recompute
  37. 2026-09-10 17:39 UTCGHSA enrichment
  38. 2026-09-10 06:19 UTCGHSA enrichment
  39. 2026-09-09 18:59 UTCGHSA enrichment
  40. 2026-09-09 07:39 UTCEG score recompute
  41. 2026-09-09 07:39 UTCGHSA enrichment
  42. 2026-09-08 22:01 UTCEPSS rescore
  43. 2026-09-08 20:20 UTCGHSA enrichment
  44. 2026-09-08 03:52 UTCGHSA enrichment
  45. 2026-09-07 16:32 UTCEG score recompute
  46. 2026-09-07 16:32 UTCGHSA enrichment
  47. 2026-09-07 05:11 UTCGHSA enrichment
  48. 2026-09-06 17:48 UTCEG score recompute
  49. 2026-09-06 17:48 UTCGHSA enrichment
  50. 2026-09-06 13:48 UTCEPSS rescore
  51. 2026-09-06 06:27 UTCGHSA enrichment
  52. 2026-09-05 19:07 UTCEG score recompute
  53. 2026-09-05 19:07 UTCGHSA enrichment
  54. 2026-09-05 15:31 UTCEPSS rescore
  55. 2026-09-05 07:48 UTCGHSA enrichment
  56. 2026-09-04 20:27 UTCEG score recompute
  57. 2026-09-04 20:27 UTCGHSA enrichment
  58. 2026-09-04 20:05 UTCEG score recompute
  59. 2026-09-04 20:05 UTCGHSA enrichment
  60. 2026-09-04 15:43 UTCEG score recompute
  61. 2026-09-04 15:43 UTCGHSA enrichment
  62. 2026-09-04 04:24 UTCEG score recompute
  63. 2026-09-04 04:23 UTCGHSA enrichment
  64. 2026-09-04 04:07 UTCEG score recompute
  65. 2026-09-04 04:07 UTCGHSA enrichment
  66. 2026-09-04 00:34 UTCGHSA enrichment
  67. 2026-09-03 13:14 UTCEG score recompute
  68. 2026-09-03 11:32 UTCEG score recompute
  69. 2026-09-03 11:29 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-85169?
CVE-2026-85169 is a high vulnerability published on September 3, 2026. n8n versions before 1.123.73, 2.35.4, and 2.36.2 contain an expression sandbox escape in the $fromAI handler. $fromAI resolved a caller-supplied placeholder name without requiring it to be an own property and admitted reserved keys; against a primitive input value it returned a live host-prototype…
When was CVE-2026-85169 disclosed?
CVE-2026-85169 was first published in the National Vulnerability Database on September 3, 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-2026-85169 actively exploited?
CVE-2026-85169 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 42.7% of all scored CVEs.
What is the CVSS score of CVE-2026-85169?
CVE-2026-85169 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-85169?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-85169, 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.

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