CVE-2026-77081

HIGHNVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory published 2026-08-20. NVD baseline CVSS 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

n8n before 1.123.69, 2.x before 2.33.4, and 2.x before 2.34.1 contain an allowed-domains bypass in the GraphQL node. When the node's Authentication parameter is set to expression mode, every authentication-gated credential selector is treated as active; if two credentials of different types are attached, the node enforces the allowed-domains policy of only the first credential while still attaching material from both. An authenticated user with workflow-authoring rights can thereby send a domain-restricted credential to an attacker-controlled endpoint, exfiltrating it with the leaked credential's permissions.

CVSS v3
7.1
EG Score
7.1HIGHmedium confidence
EG Risk
32
EG Risk 32/100CISA 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
Severity71% × 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
0.4%
EPSS %ILE
29th
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 Allowed-Domains Bypass via GraphQL Node | Advisories | VulnCheck

https://www.vulncheck.com/advisories/n8n-before-allowed-domains-bypass-via-graphql-node
github Patch Available

GraphQL Node Allowed-Domains Bypass Permits Restricted Credential Exfiltration · Advisory · n8n-io/n8n · GitHub

https://github.com/n8n-io/n8n/security/advisories/GHSA-wcv8-x773-j96r

Vendor Advisories for CVE-2026-77081(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 24× in last 7d / 109× 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 169 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-77081?
CVE-2026-77081 is a high vulnerability published on August 20, 2026. n8n before 1.123.69, 2.x before 2.33.4, and 2.x before 2.34.1 contain an allowed-domains bypass in the GraphQL node. When the node's Authentication parameter is set to expression mode, every authentication-gated credential selector is treated as active; if two credentials of different types are…
When was CVE-2026-77081 disclosed?
CVE-2026-77081 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-2026-77081 actively exploited?
CVE-2026-77081 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (29th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-77081?
CVE-2026-77081 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-77081?
A fix for CVE-2026-77081 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-77081 are linked in the Vendor Advisories panel on this page.

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