CVE-2026-72766

HIGHNVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

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, GitHub Security Advisory, NVD CVSS v3

Also known asEUVD-2026-56145 (ENISA EUVD) · GHSA-9x27-5f6j-72hw (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
39th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-11). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 11, 2026

Last Modified

October 29, 2026

Advisory Details (2)

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

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 advisoryMentions a patch (unverified)

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 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 8× in last 7d / 39× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 267 rows on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 167 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:57 UTCEPSS rescoreEPSS 0.4% · 39th percentile
  2. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.4% · 39th percentile
  3. 2026-11-12 04:41 UTCEchelonGraph re-scored
  4. 2026-11-12 04:40 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  5. 2026-11-11 16:40 UTCEPSS rescoreEPSS 0.4% · 39th percentile
  6. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  7. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  8. 2026-11-08 16:40 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  9. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  10. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  11. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  12. 2026-11-05 12:59 UTCEchelonGraph re-scored
  13. 2026-11-05 12:59 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  14. 2026-11-04 16:36 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  15. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  16. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  17. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  18. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  19. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  20. 2026-10-29 21:26 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  21. 2026-10-29 20:26 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  22. 2026-10-29 19:47 UTCEchelonGraph re-scored
  23. 2026-10-29 19:47 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  24. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  25. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.4% · 38th percentile
Show 75 more
  1. 2026-10-27 21:08 UTCEchelonGraph re-scored
  2. 2026-10-27 21:08 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  3. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  4. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  5. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  6. 2026-10-25 14:06 UTCEchelonGraph re-scored
  7. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  8. 2026-10-24 15:27 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  9. 2026-10-23 19:31 UTCEchelonGraph re-scored
  10. 2026-10-23 19:31 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  11. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  12. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  13. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  14. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  15. 2026-10-20 08:36 UTCEchelonGraph re-scored
  16. 2026-10-20 08:36 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  17. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  18. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  19. 2026-10-18 03:15 UTCEchelonGraph re-scored
  20. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  21. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  22. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  23. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  24. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  25. 2026-10-13 08:07 UTCEchelonGraph re-scored
  26. 2026-10-13 08:07 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  27. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  28. 2026-10-12 15:41 UTCEchelonGraph re-scored
  29. 2026-10-11 19:27 UTCEchelonGraph re-scored
  30. 2026-10-11 16:42 UTCEchelonGraph re-scored
  31. 2026-10-11 14:02 UTCEchelonGraph re-scored
  32. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  33. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  34. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  35. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  36. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  37. 2026-10-07 05:32 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  38. 2026-10-06 17:58 UTCEchelonGraph re-scored
  39. 2026-10-06 17:58 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  40. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  41. 2026-10-05 18:08 UTCEchelonGraph re-scored
  42. 2026-10-05 18:08 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  43. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  44. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  45. 2026-10-04 22:47 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  46. 2026-10-04 09:15 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  47. 2026-10-03 21:26 UTCEchelonGraph re-scored
  48. 2026-10-03 21:26 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  49. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  50. 2026-10-02 19:42 UTCEchelonGraph re-scored
  51. 2026-10-02 19:42 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  52. 2026-10-02 08:44 UTCEchelonGraph re-scored
  53. 2026-10-02 08:44 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  54. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  55. 2026-10-01 09:31 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  56. 2026-09-30 22:19 UTCEchelonGraph re-scored
  57. 2026-09-30 22:19 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  58. 2026-09-29 05:16 UTCEchelonGraph re-scored
  59. 2026-09-29 05:16 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  60. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  61. 2026-09-28 13:18 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  62. 2026-09-28 02:20 UTCEchelonGraph re-scored
  63. 2026-09-28 02:20 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  64. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  65. 2026-09-27 11:01 UTCEchelonGraph re-scored
  66. 2026-09-27 11:01 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  67. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  68. 2026-09-25 03:56 UTCEchelonGraph re-scored
  69. 2026-09-25 03:56 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  70. 2026-09-24 08:11 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  71. 2026-09-23 21:06 UTCEchelonGraph re-scored
  72. 2026-09-23 21:06 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  73. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  74. 2026-09-23 08:12 UTCGHSA enrichmentGHSA-9x27-5f6j-72hw · GitHub severity HIGH · GitHub CVSS 7.5
  75. 2026-09-22 21:14 UTCEchelonGraph re-scored

Frequently asked(5)

What is CVE-2026-72766?
CVE-2026-72766 is a high-severity vulnerability; its CVE record was 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 made public?
CVE-2026-72766 was made public on July 22, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on August 11, 2026. EchelonGraph's copy of the record carries a last-modified date of October 29, 2026; the record at its source may have been updated since.
Is CVE-2026-72766 actively exploited?
CVE-2026-72766 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (39th percentile of EPSS-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?
A fix for CVE-2026-72766 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-72766 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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