CVE-2026-126388

n8n before 2.46.1 Credential Leak via Cross-Origin Redirects in Nodes

Published Nov 13, 2026 CVSS 4.0 · 6.3 Medium EPSS n/a KEV · Not listed

Description

n8n before 2.46.1 contains a credential exposure vulnerability that forwards Authorization headers and basic auth credentials on cross-origin redirects because sendCredentialsOnCrossOriginRedirect defaults to true. Attackers controlling a redirect target or an expression-fed URL in credential-using nodes can capture stored workflow credentials sent to their endpoint.

Analysis

No analysis available yet

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n8n-io

n8n

unaffected

Version	Status	Constraints
`2.46.0`	affected	< 2.46.1
`2.46.1`	unaffected	—

n8n-io

n8n

unaffected

Version	Status	Constraints
`0`	affected	< 2.45.5
`2.45.5`	unaffected	—

n8n-io

n8n

unaffected

Version	Status	Constraints
`3.0.0`	affected	< 3.0.1
`3.0.1`	unaffected	—

No data.

No data available yet.

Remediation

No remediation available yet

Tracking

Advisories

No advisories available

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/n8n-io/n8n/security/advisories/GHSA-prmc-fg87-r4gh
https://www.vulncheck.com/advisories/n8n-before-2.46.1-credential-leak-via-cross-origin-redirects-in-nodes

History

Nov 13, 2026 9:45 AM Description updated. Title updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		n8n before 2.46.1 contains a credential exposure vulnerability that forwards Authorization headers and basic auth credentials on cross-origin redirects because sendCredentialsOnCrossOriginRedirect defaults to true. Attackers controlling a redirect target or an expression-fed URL in credential-using nodes can capture stored workflow credentials sent to their endpoint.
Title		n8n before 2.46.1 Credential Leak via Cross-Origin Redirects in Nodes
First Time appeared		N8n N8n n8n
Weaknesses		CWE-522
CPEs		cpe:2.3:a:n8n:n8n::::::::
Vendors & Products		N8n N8n n8n
References		https://github.com/n8n-io/n8n/security/advisories/GHSA-prmc-fg87-r4gh https://www.vulncheck.com/advisories/n8n-before-2.46.1-credential-leak-via-cross-origin-redirects-in-nodes
Metrics		cvssV3_1 `{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N'}` cvssV4_0 `{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}`