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: 0.6%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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
6.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100CISA SSVC

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%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
45th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

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 rangeFix by version rangeDependents
n8n—
  • every version up to 1.123.67: fixed in 1.123.67
  • 2.32.0 up to 2.32.1: fixed in 2.32.1
  • 2.0.0-rc.0 up to 2.31.5: fixed in 2.31.5
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 67× 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 170 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

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 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 0.6% probability of exploitation in the next 30 days (45th percentile of EPSS-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?
A fix for CVE-2026-72749 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-72749 are linked in the Vendor Advisories panel on this page.

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