CVE-2026-59209Network attack vector

Credential disclosure via pagination request-header exposure

Published Jul 9, 2026 · Updated Jul 9, 2026

Credential exposure in n8n before 1.123.61, 2.27.4, and 2.28.1 allows remote authenticated users to read shared HTTP headers. The HTTP Request node places credential-populated headers in the $request object while evaluating a user-controlled pagination expression, which can copy the secret into item data for later exfiltration. Exploitation requires N8N_EXPRESSION_ENGINE=vm and use-only access to a shared, paginated workflow that uses an HTTP Header Auth credential.

CVSS severity7.1
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential exposure in n8n before 1.123.61, 2.27.4, and 2.28.1 allows remote authenticated users to read shared HTTP headers. The HTTP Request node places credential-populated headers in the $request object while evaluating a user-controlled pagination expression, which can copy the secret into item data for later exfiltration. Exploitation requires N8N_EXPRESSION_ENGINE=vm and use-only access to a shared, paginated workflow that uses an HTTP Header Auth credential.

The record

CVE
CVE-2026-59209
Published
Jul 9, 2026
Updated
Jul 9, 2026
Vendor
n8n
Product
n8n
Classifications
CWE-200, CWE-522, T1552
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.123.61
  2. Affected versionversion=>= 2.0.0-rc.0, < 2.27.4
  3. Affected versionversion=>= 2.28.0, < 2.28.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

n8n · n8nversion=< 1.123.61; version=>= 2.0.0-rc.0, < 2.27.4; version=>= 2.28.0, < 2.28.1

Published CVSS scores

6.5NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
7.1GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
CWE-522Insufficiently Protected Credentials
T1552Unsecured Credentials

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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