CVE-2026-72766

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-11. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: 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.x before 2.31.5, and 2.32.x before 2.32.1 contain a type confusion vulnerability in the Send Email node, which does not enforce that its message fields are strings. A crafted non-string value supplied from a workflow expression into the text or HTML body field can be interpreted by the underlying mail library (Nodemailer) as a file path or URL, allowing arbitrary local file disclosure and server-side request forgery (SSRF). Exploitation requires a pre-existing active workflow with an unauthenticated webhook, valid SMTP credentials configured on the node, and untrusted input mapped directly into the body field; this is not a default configuration.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

August 11, 2026

Last Modified

August 28, 2026

Advisory Details (2)

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

n8n before 1.123.67 Arbitrary File Read via Send Email Node | Advisories | VulnCheck

https://www.vulncheck.com/advisories/n8n-before-arbitrary-file-read-via-send-email-node
github Patch Available

Send Email Node Arbitrary File Read and SSRF via Nodemailer Content-Object Type Confusion · Advisory · n8n-io/n8n · GitHub

https://github.com/n8n-io/n8n/security/advisories/GHSA-2x35-3fw4-9jr4

Vendor Advisories for CVE-2026-72766(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 24× in last 7d / 111× 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 155 total refreshes for this CVE.

  1. 2026-09-19 12:25 UTCGHSA enrichment
  2. 2026-09-18 22:57 UTCEG score recompute
  3. 2026-09-18 22:57 UTCGHSA enrichment
  4. 2026-09-18 19:28 UTCEPSS rescore
  5. 2026-09-18 11:59 UTCGHSA enrichment
  6. 2026-09-18 00:56 UTCEG score recompute
  7. 2026-09-18 00:56 UTCGHSA enrichment
  8. 2026-09-17 13:58 UTCGHSA enrichment
  9. 2026-09-17 00:36 UTCEG score recompute
  10. 2026-09-17 00:36 UTCGHSA enrichment
  11. 2026-09-16 14:08 UTCEPSS rescore
  12. 2026-09-16 05:15 UTCEPSS rescore
  13. 2026-09-16 02:16 UTCGHSA enrichment
  14. 2026-09-15 09:43 UTCEG score recompute
  15. 2026-09-15 09:43 UTCGHSA enrichment
  16. 2026-09-15 03:12 UTCEPSS rescore
  17. 2026-09-14 22:45 UTCGHSA enrichment
  18. 2026-09-14 09:09 UTCGHSA enrichment
  19. 2026-09-13 22:12 UTCEG score recompute
  20. 2026-09-13 22:12 UTCGHSA enrichment
  21. 2026-09-13 11:14 UTCGHSA enrichment
  22. 2026-09-13 00:16 UTCEG score recompute
  23. 2026-09-13 00:16 UTCGHSA enrichment
  24. 2026-09-12 15:02 UTCEPSS rescore
  25. 2026-09-12 13:17 UTCGHSA enrichment
Show 75 more
  1. 2026-09-12 02:19 UTCGHSA enrichment
  2. 2026-09-11 15:11 UTCEG score recompute
  3. 2026-09-11 15:11 UTCGHSA enrichment
  4. 2026-09-11 14:53 UTCEPSS rescore
  5. 2026-09-11 04:10 UTCGHSA enrichment
  6. 2026-09-10 17:03 UTCEG score recompute
  7. 2026-09-10 17:03 UTCGHSA enrichment
  8. 2026-09-10 09:35 UTCEPSS rescore
  9. 2026-09-10 05:12 UTCGHSA enrichment
  10. 2026-09-09 18:07 UTCGHSA enrichment
  11. 2026-09-09 05:44 UTCEG score recompute
  12. 2026-09-09 05:44 UTCGHSA enrichment
  13. 2026-09-08 22:01 UTCEPSS rescore
  14. 2026-09-08 04:30 UTCGHSA enrichment
  15. 2026-09-07 17:04 UTCEG score recompute
  16. 2026-09-07 17:04 UTCGHSA enrichment
  17. 2026-09-06 22:26 UTCEG score recompute
  18. 2026-09-06 22:26 UTCGHSA enrichment
  19. 2026-09-06 13:48 UTCEPSS rescore
  20. 2026-09-06 11:21 UTCGHSA enrichment
  21. 2026-09-06 00:24 UTCEG score recompute
  22. 2026-09-06 00:24 UTCGHSA enrichment
  23. 2026-09-05 13:13 UTCGHSA enrichment
  24. 2026-09-05 01:44 UTCGHSA enrichment
  25. 2026-09-04 14:36 UTCEG score recompute
  26. 2026-09-04 14:36 UTCGHSA enrichment
  27. 2026-09-04 05:07 UTCEPSS rescore
  28. 2026-09-04 03:38 UTCGHSA enrichment
  29. 2026-09-03 16:31 UTCGHSA enrichment
  30. 2026-09-03 01:29 UTCEG score recompute
  31. 2026-09-03 01:29 UTCGHSA enrichment
  32. 2026-09-02 14:12 UTCEPSS rescore
  33. 2026-09-02 00:43 UTCEG score recompute
  34. 2026-09-02 00:43 UTCGHSA enrichment
  35. 2026-09-01 13:54 UTCEPSS rescore
  36. 2026-09-01 13:28 UTCEG score recompute
  37. 2026-09-01 13:28 UTCGHSA enrichment
  38. 2026-09-01 04:40 UTCEPSS rescore
  39. 2026-09-01 04:40 UTCEPSS rescore
  40. 2026-08-31 21:56 UTCGHSA enrichment
  41. 2026-08-31 05:53 UTCEG score recompute
  42. 2026-08-31 05:53 UTCGHSA enrichment
  43. 2026-08-30 19:18 UTCEPSS rescore
  44. 2026-08-30 19:17 UTCEPSS rescore
  45. 2026-08-30 18:54 UTCGHSA enrichment
  46. 2026-08-30 07:56 UTCEG score recompute
  47. 2026-08-30 07:56 UTCGHSA enrichment
  48. 2026-08-30 01:22 UTCEPSS rescore
  49. 2026-08-29 20:51 UTCGHSA enrichment
  50. 2026-08-29 09:43 UTCEG score recompute
  51. 2026-08-29 09:43 UTCGHSA enrichment
  52. 2026-08-28 21:42 UTCEPSS rescore
  53. 2026-08-28 18:43 UTCEG score recompute▼ 0.70
  54. 2026-08-28 18:43 UTCGHSA enrichment
  55. 2026-08-28 18:34 UTCNVD updateCVSS v3 → 7.5
  56. 2026-08-28 03:36 UTCGHSA enrichment
  57. 2026-08-27 16:39 UTCEG score recompute
  58. 2026-08-27 16:38 UTCGHSA enrichment
  59. 2026-08-27 14:25 UTCEPSS rescore
  60. 2026-08-27 04:35 UTCGHSA enrichment
  61. 2026-08-26 17:27 UTCEG score recompute
  62. 2026-08-26 17:26 UTCGHSA enrichment
  63. 2026-08-26 14:47 UTCEPSS rescore
  64. 2026-08-26 06:59 UTCGHSA enrichment
  65. 2026-08-25 20:01 UTCEG score recompute
  66. 2026-08-25 20:01 UTCGHSA enrichment
  67. 2026-08-25 13:49 UTCEPSS rescore
  68. 2026-08-25 09:02 UTCGHSA enrichment
  69. 2026-08-24 22:05 UTCEG score recompute
  70. 2026-08-24 22:05 UTCGHSA enrichment
  71. 2026-08-24 11:07 UTCEG score recompute
  72. 2026-08-24 11:07 UTCGHSA enrichment
  73. 2026-08-24 00:09 UTCGHSA enrichment
  74. 2026-08-23 13:11 UTCGHSA enrichment
  75. 2026-08-23 02:10 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-72766?
CVE-2026-72766 is a high vulnerability published on August 11, 2026. n8n before 1.123.67, 2.x before 2.31.5, and 2.32.x before 2.32.1 contain a type confusion vulnerability in the Send Email node, which does not enforce that its message fields are strings. A crafted non-string value supplied from a workflow expression into the text or HTML body field can be…
When was CVE-2026-72766 disclosed?
CVE-2026-72766 was first published in the National Vulnerability Database on August 11, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72766 actively exploited?
CVE-2026-72766 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 80.0% of all scored CVEs.
What is the CVSS score of CVE-2026-72766?
CVE-2026-72766 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-72766?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72766, 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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