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CVE-2026-65596

n8n before 1.123.64 Credential Exfiltration via GraphQL Node

5.1 MediumFix available

n8n before 1.123.64, 2.29.8, and 2.30.1 fails to enforce the "Allowed HTTP Request Domains" restriction on HTTP-based credentials (Header Auth, Basic Auth, Query Auth, OAuth) in the GraphQL node, unlike the HTTP Request node. An authenticated user able to create or edit workflows can point the node's endpoint at a server they control and exfiltrate restricted credentials. Only instances where a credential has "Allowed HTTP Request Domains" configured and is usable by non-owner users are affected.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
None
Availability
None

Exploit likelihood

0.37%Unchanged since Jul 23, 2026
90%50%10%1%

What each source reports

CVE List Score used 5.1

n8n before 1.123.64 Credential Exfiltration via GraphQL Node

n8n before 1.123.64, 2.29.8, and 2.30.1 fails to enforce the "Allowed HTTP Request Domains" restriction on HTTP-based credentials (Header Auth, Basic Auth, Query Auth, OAuth) in the GraphQL node, unlike the HTTP Request node. An authenticated user able to create or edit workflows can point the node's endpoint at a server they control and exfiltrate restricted credentials. Only instances where a credential has "Allowed HTTP Request Domains" configured and is usable by non-owner users are affected.

Record
CVE-2026-65596
CVSS 4.0
5.1 MediumCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:N
Weakness
CWE-863
Updated
2026-11-02
EUVDEUVD-2026-47640 5.1

n8n before 1.123.64, 2.29.8, and 2.30.1 fails to enforce the "Allowed HTTP Request Domains" restriction on HTTP-based credentials (Header Auth, Basic Auth, Query Auth, OAuth) in the GraphQL node, unlike the HTTP Request node. An authenticated user able to create or edit workflows can point the node's endpoint at a server they control and exfiltrate restricted credentials. Only instances where a credential has "Allowed HTTP Request Domains" configured and is usable by non-owner users are affected.

Record
EUVD-2026-47640
CVSS 4.0
5.1 MediumCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-88c4-pcqm-3r9p 5.1

Duplicate Advisory: GraphQL Node Bypasses "Allowed HTTP Request Domains" Restriction

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-gq66-9cw5-j5jm. This link is maintained to preserve external references.

Original Description

n8n before 1.123.64, 2.29.8, and 2.30.1 fails to enforce the "Allowed HTTP Request Domains" restriction on HTTP-based credentials (Header Auth, Basic Auth, Query Auth, OAuth) in the GraphQL node, unlike the HTTP Request node. An authenticated user able to create or edit workflows can point the node's endpoint at a server they control and exfiltrate restricted credentials. Only instances where a credential has "Allowed HTTP Request Domains" configured and is usable by non-owner users are affected.

Record
GHSA-88c4-pcqm-3r9p
CVSS 4.0
5.1 MediumCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness
CWE-863
Updated
2026-11-02
GitHub AdvisoriesGHSA-gq66-9cw5-j5jm 5.1

n8n: GraphQL Node Bypasses "Allowed HTTP Request Domains" Restriction

Impact

The GraphQL node did not enforce the "Allowed HTTP Request Domains" restriction on HTTP-based credentials (such as Header Auth, Basic Auth, Query Auth, and OAuth), unlike the HTTP Request node. An authenticated user able to create or edit workflows could therefore point the node's endpoint at a server they control and exfiltrate restricted credentials.

Only instances where a credential has "Allowed HTTP Request Domains" configured and is usable by non-owner users are affected.

Patches

The issue has been fixed in n8n versions 1.123.64, 2.29.8, and 2.30.1. Users should upgrade to one of these versions or later to remediate the vulnerability.

Workarounds

If upgrading is not immediately possible, administrators should consider the following temporary mitigations:

  • Restrict workflow creation and editing permissions to fully trusted users only.
  • Restrict credential sharing to fully trusted users only.
  • Audit credentials with domain restrictions for unexpected sharing relationships.

These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

Record
GHSA-gq66-9cw5-j5jm
CVSS 4.0
5.1 MediumCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:N
Weakness
CWE-863
Updated
2026-11-02
NVD 5.1

n8n before 1.123.64, 2.29.8, and 2.30.1 fails to enforce the "Allowed HTTP Request Domains" restriction on HTTP-based credentials (Header Auth, Basic Auth, Query Auth, OAuth) in the GraphQL node, unlike the HTTP Request node. An authenticated user able to create or edit workflows can point the node's endpoint at a server they control and exfiltrate restricted credentials. Only instances where a credential has "Allowed HTTP Request Domains" configured and is usable by non-owner users are affected.

Record
CVE-2026-65596
CVSS 4.0
5.1 MediumCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness
CWE-863
Updated
2026-11-02
OSV 5.1

n8n before 1.123.64 Credential Exfiltration via GraphQL Node

n8n before 1.123.64, 2.29.8, and 2.30.1 fails to enforce the "Allowed HTTP Request Domains" restriction on HTTP-based credentials (Header Auth, Basic Auth, Query Auth, OAuth) in the GraphQL node, unlike the HTTP Request node. An authenticated user able to create or edit workflows can point the node's endpoint at a server they control and exfiltrate restricted credentials. Only instances where a credential has "Allowed HTTP Request Domains" configured and is usable by non-owner users are affected.

Record
CVE-2026-65596
CVSS 4.0
5.1 MediumCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:N
Weakness
CWE-863
Updated
2026-11-02
OSVGHSA-88c4-pcqm-3r9p 5.1

Duplicate Advisory: GraphQL Node Bypasses "Allowed HTTP Request Domains" Restriction

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-gq66-9cw5-j5jm. This link is maintained to preserve external references.

Original Description

n8n before 1.123.64, 2.29.8, and 2.30.1 fails to enforce the "Allowed HTTP Request Domains" restriction on HTTP-based credentials (Header Auth, Basic Auth, Query Auth, OAuth) in the GraphQL node, unlike the HTTP Request node. An authenticated user able to create or edit workflows can point the node's endpoint at a server they control and exfiltrate restricted credentials. Only instances where a credential has "Allowed HTTP Request Domains" configured and is usable by non-owner users are affected.

Record
GHSA-88c4-pcqm-3r9p
CVSS 4.0
5.1 MediumCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness
CWE-863
Updated
2026-11-02
OSVGHSA-gq66-9cw5-j5jm 5.1

n8n: GraphQL Node Bypasses "Allowed HTTP Request Domains" Restriction

Impact

The GraphQL node did not enforce the "Allowed HTTP Request Domains" restriction on HTTP-based credentials (such as Header Auth, Basic Auth, Query Auth, and OAuth), unlike the HTTP Request node. An authenticated user able to create or edit workflows could therefore point the node's endpoint at a server they control and exfiltrate restricted credentials.

Only instances where a credential has "Allowed HTTP Request Domains" configured and is usable by non-owner users are affected.

Patches

The issue has been fixed in n8n versions 1.123.64, 2.29.8, and 2.30.1. Users should upgrade to one of these versions or later to remediate the vulnerability.

Workarounds

If upgrading is not immediately possible, administrators should consider the following temporary mitigations:

  • Restrict workflow creation and editing permissions to fully trusted users only.
  • Restrict credential sharing to fully trusted users only.
  • Audit credentials with domain restrictions for unexpected sharing relationships.

These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

Record
GHSA-gq66-9cw5-j5jm
CVSS 4.0
5.1 MediumCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:N
Weakness
CWE-863
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
n8n
npm
 before 1.123.64
1.123.64
n8n
npm
 2.30.0 up to 2.30.1
2.30.1
n8n
npm
 2.0.0 up to 2.29.8
2.29.8

History

History
RecordedChangedSources
affected
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-65596 is a medium vulnerability (CVSS 5.1) in N8n, published July 22, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.37%, the 30th percentile. Fixed in n8n 1.123.64.

References

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