CVE-2026-77076

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-20. 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: 0.5%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

n8n versions before 1.123.69, 2.33.4, and 2.34.1 contain an information disclosure vulnerability in the GraphQL node. When a GraphQL request fails at the connection level, the node re-throws the underlying HTTP client error unchanged instead of wrapping it in n8n's standard error type. That error contains the live request's headers, including a decrypted credential secret, which the execution engine persists verbatim. Any authenticated user able to read the resulting execution can retrieve the decrypted credential secret from the stored run data.

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%
Exploitation0% × 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
0.5%
EPSS %ILE
40th
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 20, 2026

Last Modified

September 1, 2026

Advisory Details (2)

Auto-updated Aug 20, 2026
Patch available. Sources: github.
generic

n8n before 1.123.69 Credential Leak via GraphQL Node Error | Advisories | VulnCheck

https://www.vulncheck.com/advisories/n8n-before-credential-leak-via-graphql-node-error
github Patch Available

GraphQL Node Raw Error Re-throw Leaks Decrypted Credential Headers into Persisted Execution Data · Advisory · n8n-io/n8n · GitHub

https://github.com/n8n-io/n8n/security/advisories/GHSA-9fqj-7wc5-cwhx

Vendor Advisories for CVE-2026-77076(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 15× in last 7d / 75× 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 139 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-77076?
CVE-2026-77076 is a medium vulnerability published on August 20, 2026. n8n versions before 1.123.69, 2.33.4, and 2.34.1 contain an information disclosure vulnerability in the GraphQL node. When a GraphQL request fails at the connection level, the node re-throws the underlying HTTP client error unchanged instead of wrapping it in n8n's standard error type. That error…
When was CVE-2026-77076 disclosed?
CVE-2026-77076 was first published on August 20, 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-2026-77076 actively exploited?
CVE-2026-77076 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (40th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-77076?
CVE-2026-77076 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-77076?
A fix for CVE-2026-77076 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-77076 are linked in the Vendor Advisories panel on this page.

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