CVE-2026-85165

CRITICALNVD 9.99.9—
EchelonGraph scoreHIGH confidence

Score 9.9 from GitHub Security Advisory (severity: HIGH) published 2026-09-03. NVD baseline CVSS 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.9Exploit: None knownExposed: 0

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

n8n versions before 2.36.2 contain an expression sandbox bypass vulnerability where free identifiers in spread, computed-key, switch-case, or class-extension positions resolve against process globals. Authenticated users with workflow-edit permission can mutate host objects through expression evaluation, with changes persisting process-wide until restart.

CVSS v3
9.9
EG Score
9.9(high)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity99% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
25%
KEV
Not listed

Published

September 3, 2026

Last Modified

September 10, 2026

Advisory Details (2)

Auto-updated Sep 17, 2026
Patch available. Sources: github.
generic

n8n before 2.36.2 Expression Sandbox Bypass via SpreadElement | Advisories | VulnCheck

https://www.vulncheck.com/advisories/n8n-before-2.36.2-expression-sandbox-bypass-via-spreadelement
github Patch Available

Expression Sandbox SpreadElement Bypass Enables Persistent Cross-Evaluation Native Object Mutation · Advisory · n8n-io/n8n · GitHub

https://github.com/n8n-io/n8n/security/advisories/GHSA-fg85-4wv2-p98j

Vendor Advisories for CVE-2026-85165(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 53× in last 7d / 96× 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 09:56 UTCGHSA enrichment
  2. 2026-09-19 05:34 UTCGHSA enrichment
  3. 2026-09-19 01:31 UTCGHSA enrichment
  4. 2026-09-18 21:24 UTCEG score recompute
  5. 2026-09-18 21:24 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 16:57 UTCGHSA enrichment
  8. 2026-09-18 12:53 UTCGHSA enrichment
  9. 2026-09-18 08:48 UTCGHSA enrichment
  10. 2026-09-18 04:44 UTCGHSA enrichment
  11. 2026-09-18 00:40 UTCGHSA enrichment
  12. 2026-09-17 20:36 UTCEG score recompute
  13. 2026-09-17 20:36 UTCGHSA enrichment
  14. 2026-09-17 19:32 UTCEPSS rescore
  15. 2026-09-17 12:17 UTCGHSA enrichment
  16. 2026-09-17 08:12 UTCGHSA enrichment
  17. 2026-09-17 04:08 UTCGHSA enrichment
  18. 2026-09-17 00:04 UTCGHSA enrichment
  19. 2026-09-16 20:00 UTCGHSA enrichment
  20. 2026-09-16 15:44 UTCEG score recompute
  21. 2026-09-16 15:44 UTCGHSA enrichment
  22. 2026-09-16 14:09 UTCEPSS rescore
  23. 2026-09-16 11:39 UTCGHSA enrichment
  24. 2026-09-16 07:35 UTCEG score recompute
  25. 2026-09-16 07:35 UTCGHSA enrichment
Show 71 more
  1. 2026-09-16 05:15 UTCEPSS rescore
  2. 2026-09-16 03:30 UTCGHSA enrichment
  3. 2026-09-15 23:25 UTCGHSA enrichment
  4. 2026-09-15 19:09 UTCGHSA enrichment
  5. 2026-09-15 15:05 UTCGHSA enrichment
  6. 2026-09-15 11:00 UTCGHSA enrichment
  7. 2026-09-15 06:36 UTCEG score recompute
  8. 2026-09-15 06:36 UTCGHSA enrichment
  9. 2026-09-15 03:12 UTCEPSS rescore
  10. 2026-09-15 03:12 UTCEPSS rescore
  11. 2026-09-15 02:31 UTCGHSA enrichment
  12. 2026-09-14 22:27 UTCGHSA enrichment
  13. 2026-09-14 18:23 UTCGHSA enrichment
  14. 2026-09-14 13:42 UTCGHSA enrichment
  15. 2026-09-14 09:30 UTCGHSA enrichment
  16. 2026-09-14 05:26 UTCGHSA enrichment
  17. 2026-09-14 01:22 UTCGHSA enrichment
  18. 2026-09-13 21:18 UTCGHSA enrichment
  19. 2026-09-13 17:14 UTCEG score recompute
  20. 2026-09-13 17:14 UTCGHSA enrichment
  21. 2026-09-13 13:10 UTCGHSA enrichment
  22. 2026-09-13 09:05 UTCGHSA enrichment
  23. 2026-09-13 05:02 UTCGHSA enrichment
  24. 2026-09-13 00:58 UTCGHSA enrichment
  25. 2026-09-12 20:54 UTCGHSA enrichment
  26. 2026-09-12 16:50 UTCEG score recompute
  27. 2026-09-12 16:50 UTCGHSA enrichment
  28. 2026-09-12 12:46 UTCGHSA enrichment
  29. 2026-09-12 08:42 UTCGHSA enrichment
  30. 2026-09-12 04:37 UTCGHSA enrichment
  31. 2026-09-12 00:32 UTCGHSA enrichment
  32. 2026-09-11 20:28 UTCGHSA enrichment
  33. 2026-09-11 16:24 UTCEG score recompute
  34. 2026-09-11 16:24 UTCGHSA enrichment
  35. 2026-09-11 14:53 UTCEPSS rescore
  36. 2026-09-11 14:53 UTCEPSS rescore
  37. 2026-09-11 12:19 UTCEG score recompute
  38. 2026-09-11 12:19 UTCGHSA enrichment
  39. 2026-09-11 08:15 UTCGHSA enrichment
  40. 2026-09-11 04:11 UTCGHSA enrichment
  41. 2026-09-11 00:07 UTCEG score recompute
  42. 2026-09-11 00:07 UTCGHSA enrichment
  43. 2026-09-10 20:01 UTCEG score recompute▲ 2.70
  44. 2026-09-10 20:01 UTCGHSA enrichment
  45. 2026-09-10 19:58 UTCNVD updateCVSS v3 → 9.9 · severity → CRITICAL
  46. 2026-09-10 12:07 UTCEG score recompute
  47. 2026-09-10 12:07 UTCGHSA enrichment
  48. 2026-09-09 23:29 UTCGHSA enrichment
  49. 2026-09-09 08:58 UTCEG score recompute
  50. 2026-09-09 08:58 UTCGHSA enrichment
  51. 2026-09-08 22:01 UTCEPSS rescore
  52. 2026-09-08 20:20 UTCGHSA enrichment
  53. 2026-09-08 07:06 UTCGHSA enrichment
  54. 2026-09-07 18:26 UTCEG score recompute
  55. 2026-09-07 18:26 UTCGHSA enrichment
  56. 2026-09-07 05:47 UTCGHSA enrichment
  57. 2026-09-06 17:09 UTCEG score recompute
  58. 2026-09-06 17:09 UTCGHSA enrichment
  59. 2026-09-06 13:48 UTCEPSS rescore
  60. 2026-09-06 04:29 UTCGHSA enrichment
  61. 2026-09-05 15:51 UTCEG score recompute
  62. 2026-09-05 15:51 UTCGHSA enrichment
  63. 2026-09-05 15:31 UTCEPSS rescore
  64. 2026-09-05 03:12 UTCGHSA enrichment
  65. 2026-09-04 14:33 UTCEG score recompute
  66. 2026-09-04 14:33 UTCGHSA enrichment
  67. 2026-09-04 01:54 UTCGHSA enrichment
  68. 2026-09-03 13:14 UTCEG score recompute
  69. 2026-09-03 12:49 UTCEG score recompute
  70. 2026-09-03 11:32 UTCEG score recompute
  71. 2026-09-03 11:29 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-85165?
CVE-2026-85165 is a critical vulnerability published on September 3, 2026. n8n versions before 2.36.2 contain an expression sandbox bypass vulnerability where free identifiers in spread, computed-key, switch-case, or class-extension positions resolve against process globals. Authenticated users with workflow-edit permission can mutate host objects through expression…
When was CVE-2026-85165 disclosed?
CVE-2026-85165 was first published in the National Vulnerability Database on September 3, 2026, with the most recent update on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-85165 actively exploited?
CVE-2026-85165 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 75.4% of all scored CVEs.
What is the CVSS score of CVE-2026-85165?
CVE-2026-85165 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-85165?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-85165, 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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