CVE-2026-126388 n8n before 2.46.1 Credential Leak via Cross-Origin Redirects in Nodes

6.3 mediumEPSS 0.3%

Medium (6.3) in n8n-io n8n. EPSS 0.3% estimated probability of exploitation activity in the next 30 days.

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Severity
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Affected
Versions
Attack patterns (CAPEC)
History
References
Your exposure

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.

Severity

CVSS 4.0

6.3 medium

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

CVSS 3.1

3.7 low

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.3% estimated probability of exploitation activity in the next 30 days; 23rd percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
CISA's assessment (SSVC): Exploitation: none · Automatable: no · Technical impact: partial, assessed 2026-11-13. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
CWE: CWE-522 Insufficiently Protected Credentials
OWASP Top 10: A06:2025 Insecure Design
Published: 2026-11-13 10:17 UTC
Modified: 2026-11-13 21:17 UTC
Assigned by: VulnCheck (CNA)
NVD analysis: Deferred: the NVD does not plan to analyze it
Record from: the NVD, synced 2026-11-13 21:52 UTC

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Affected

n8n-io:n8n

Versions

From the CNA's record in the CVE List.

Product	Affected
n8n-io n8n	from 2.46.0 before 2.46.1
n8n-io n8n	before 2.45.5
n8n-io n8n	from 3.0.0 before 3.0.1

Attack patterns (CAPEC)

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits. More on the page of CWE-522 (13).

History

2026-11-13 The NVD deferred its analysis

Changes since this site first stored the record. The same for every record: /api/public/changes.

References

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