CVE-2026-72749

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-11. NVD baseline CVSS 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

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

n8n before 1.123.67, 2.31.5, and 2.32.1 contains a prototype pollution vulnerability in the Edit Fields (Set) node. The node assigns output fields via a dot-notation path setter without restricting the field name, allowing an authenticated user to name a field after an inherited built-in method path and corrupt a shared global in the main Node.js process. Because that global is used on the request-authentication path, the instance then fails every authenticated request, causing an instance-wide denial of service for all users until the process is restarted.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

August 11, 2026

Last Modified

September 1, 2026

Advisory Details (2)

Auto-updated Aug 11, 2026
Patch available. Sources: github.
generic

n8n before 1.123.67 Prototype Pollution via Edit Fields | Advisories | VulnCheck

https://www.vulncheck.com/advisories/n8n-before-prototype-pollution-via-edit-fields
github Patch Available

Prototype Pollution via Dot-Notation Field Names Leads To Instance-Wide Denial of Service · Advisory · n8n-io/n8n · GitHub

https://github.com/n8n-io/n8n/security/advisories/GHSA-xwx6-jjhv-84p8

Vendor Advisories for CVE-2026-72749(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
n8n—2.31.5—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 18× in last 7d / 95× 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.

Showing the most recent 100 of 138 total refreshes for this CVE.

  1. 2026-09-18 23:52 UTCEG score recompute
  2. 2026-09-18 23:52 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 00:47 UTCEG score recompute
  5. 2026-09-18 00:47 UTCGHSA enrichment
  6. 2026-09-17 01:18 UTCEG score recompute
  7. 2026-09-17 01:18 UTCGHSA enrichment
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 05:15 UTCEPSS rescore
  10. 2026-09-16 02:16 UTCEG score recompute
  11. 2026-09-16 02:16 UTCGHSA enrichment
  12. 2026-09-15 03:12 UTCEPSS rescore
  13. 2026-09-15 00:26 UTCGHSA enrichment
  14. 2026-09-14 00:56 UTCEG score recompute
  15. 2026-09-14 00:56 UTCGHSA enrichment
  16. 2026-09-13 01:55 UTCEG score recompute
  17. 2026-09-13 01:55 UTCGHSA enrichment
  18. 2026-09-12 15:02 UTCEPSS rescore
  19. 2026-09-12 02:53 UTCEG score recompute
  20. 2026-09-12 02:53 UTCGHSA enrichment
  21. 2026-09-11 14:53 UTCEPSS rescore
  22. 2026-09-11 03:51 UTCEG score recompute
  23. 2026-09-11 03:51 UTCGHSA enrichment
  24. 2026-09-10 09:35 UTCEPSS rescore
  25. 2026-09-10 04:49 UTCGHSA enrichment
Show 75 more
  1. 2026-09-09 05:44 UTCEG score recompute
  2. 2026-09-09 05:44 UTCGHSA enrichment
  3. 2026-09-08 22:01 UTCEPSS rescore
  4. 2026-09-07 23:00 UTCEG score recompute
  5. 2026-09-07 23:00 UTCGHSA enrichment
  6. 2026-09-06 23:58 UTCEG score recompute
  7. 2026-09-06 23:58 UTCGHSA enrichment
  8. 2026-09-06 13:48 UTCEPSS rescore
  9. 2026-09-06 00:47 UTCEG score recompute
  10. 2026-09-06 00:47 UTCGHSA enrichment
  11. 2026-09-05 01:44 UTCEG score recompute
  12. 2026-09-05 01:44 UTCGHSA enrichment
  13. 2026-09-04 05:07 UTCEPSS rescore
  14. 2026-09-04 01:52 UTCGHSA enrichment
  15. 2026-09-03 01:30 UTCEG score recompute
  16. 2026-09-03 01:29 UTCGHSA enrichment
  17. 2026-09-02 14:12 UTCEPSS rescore
  18. 2026-09-01 20:24 UTCGHSA enrichment
  19. 2026-09-01 20:01 UTCEG score recompute▼ 0.60
  20. 2026-09-01 20:01 UTCGHSA enrichment
  21. 2026-09-01 20:00 UTCNVD updateCVSS v3 → 6.5 · severity → MEDIUM
  22. 2026-09-01 13:54 UTCEPSS rescore
  23. 2026-09-01 13:28 UTCEG score recompute
  24. 2026-09-01 13:28 UTCGHSA enrichment
  25. 2026-09-01 04:40 UTCEPSS rescore
  26. 2026-09-01 04:40 UTCEPSS rescore
  27. 2026-08-31 20:43 UTCGHSA enrichment
  28. 2026-08-31 06:33 UTCGHSA enrichment
  29. 2026-08-30 19:21 UTCEG score recompute
  30. 2026-08-30 19:21 UTCGHSA enrichment
  31. 2026-08-30 19:18 UTCEPSS rescore
  32. 2026-08-30 19:17 UTCEPSS rescore
  33. 2026-08-30 08:09 UTCEG score recompute
  34. 2026-08-30 08:09 UTCGHSA enrichment
  35. 2026-08-30 01:22 UTCEPSS rescore
  36. 2026-08-29 20:56 UTCGHSA enrichment
  37. 2026-08-29 09:44 UTCEG score recompute
  38. 2026-08-29 09:43 UTCGHSA enrichment
  39. 2026-08-28 21:42 UTCEPSS rescore
  40. 2026-08-28 11:13 UTCGHSA enrichment
  41. 2026-08-27 19:40 UTCEG score recompute
  42. 2026-08-27 19:40 UTCGHSA enrichment
  43. 2026-08-27 14:25 UTCEPSS rescore
  44. 2026-08-27 07:27 UTCGHSA enrichment
  45. 2026-08-26 18:52 UTCEG score recompute
  46. 2026-08-26 18:52 UTCGHSA enrichment
  47. 2026-08-26 14:47 UTCEPSS rescore
  48. 2026-08-26 07:36 UTCGHSA enrichment
  49. 2026-08-25 20:22 UTCEG score recompute
  50. 2026-08-25 20:22 UTCGHSA enrichment
  51. 2026-08-25 13:49 UTCEPSS rescore
  52. 2026-08-25 09:10 UTCGHSA enrichment
  53. 2026-08-24 21:58 UTCEG score recompute
  54. 2026-08-24 21:58 UTCGHSA enrichment
  55. 2026-08-24 10:46 UTCEG score recompute
  56. 2026-08-24 10:46 UTCGHSA enrichment
  57. 2026-08-23 23:33 UTCGHSA enrichment
  58. 2026-08-23 12:21 UTCGHSA enrichment
  59. 2026-08-23 01:09 UTCEG score recompute
  60. 2026-08-23 01:09 UTCGHSA enrichment
  61. 2026-08-23 00:19 UTCEPSS rescore
  62. 2026-08-22 13:56 UTCGHSA enrichment
  63. 2026-08-22 02:43 UTCEG score recompute
  64. 2026-08-22 02:43 UTCGHSA enrichment
  65. 2026-08-21 23:49 UTCEPSS rescore
  66. 2026-08-21 15:30 UTCGHSA enrichment
  67. 2026-08-21 04:18 UTCEG score recompute
  68. 2026-08-21 04:18 UTCGHSA enrichment
  69. 2026-08-20 22:56 UTCEPSS rescore
  70. 2026-08-20 17:06 UTCGHSA enrichment
  71. 2026-08-20 05:54 UTCGHSA enrichment
  72. 2026-08-19 18:41 UTCEG score recompute
  73. 2026-08-19 18:41 UTCGHSA enrichment
  74. 2026-08-19 17:04 UTCEPSS rescore
  75. 2026-08-19 06:01 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-72749?
CVE-2026-72749 is a medium vulnerability published on August 11, 2026. n8n before 1.123.67, 2.31.5, and 2.32.1 contains a prototype pollution vulnerability in the Edit Fields (Set) node. The node assigns output fields via a dot-notation path setter without restricting the field name, allowing an authenticated user to name a field after an inherited built-in method…
When was CVE-2026-72749 disclosed?
CVE-2026-72749 was first published in the National Vulnerability Database on August 11, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72749 actively exploited?
CVE-2026-72749 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 75.6% of all scored CVEs.
What is the CVSS score of CVE-2026-72749?
CVE-2026-72749 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-72749?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72749, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-72749

Explore →

Is Your Infrastructure Affected by CVE-2026-72749?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs