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Vulnerabilities

Vulnerability · CVE-2026-33663

n8n is an open source workflow automation platform.

Published Mar 25, 2026 · catalog updated Jun 17, 2026 · n8n is an open

Check if you run it

No confirmed exploitation is on record for CVE-2026-33663. EPSS is 0.45%. Act only if a listed version of n8n is an open is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (n8n is an open).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.45%
Remediation
Advisory link
Affected products
cpe n8n/n8n

n8n is an open source workflow automation platform. Prior to versions 2.14.1, 2.13.3, and 1.123.27, an authenticated user with the role could exploit chained authorization flaws in n8n's credential pipeline to steal plaintext secrets from generic HTTP credentials ( , , ) belonging to other users on the same instance. The attack abuses a name-based credential resolution path that does not enforce ownership or project scope, combined with a bypass in the credentials permission checker that causes generic HTTP credential types to be skipped during pre-execution validation. Together, these flaws allow a member-role user to resolve another user's credential ID and execute a workflow that decrypts and uses that credential without authorization. Native integration credential types (e.g. , , ) are not affected by this issue. This vulnerability affects Community Edition only. Enterprise Edition has additional permission gates on workflow creation and execution that independently block this attack chain. The issue has been fixed in n8n versions 1.123.27, 2.13.3, and 2.14.1. Users should upgrade to one of these versions or later to remediate the vulnerability. If upgrading is not immediately possible, administrators should consider the following temporary mitigations: Restrict instance access to fully trusted users only, and/or audit credentials stored on the instance and rotate any generic HTTP credentials ( , , ) that may have been exposed. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe n8n/n8n2.14.0

How to fix CVE-2026-33663

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-33663. EPSS is 0.45%. Act only if a listed version of n8n is an open is installed.

Which versions are affected?

Compare what you have installed with 2.14.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-639: Authorization Bypass Through User-Controlled Key. EPSS 0.45%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 25, 2026 · NIST NVD

    Detected

    n8n is an open source workflow automation platform. Prior to versions 2.14.1, 2.13.3, and 1.123.27, an authenticated user with the role could exploit chained authorization flaws in n8n's credential pipeline to steal plaintext secrets from generic HTTP credentials ( , , ) belonging to other users on the same instance. The attack abuses a name-based credential resolution path that does not enforce o

  2. Jun 17, 2026 · NIST NVD

    Updated

    n8n is an open source workflow automation platform. Prior to versions 2.14.1, 2.13.3, and 1.123.27, an authenticated user with the role could exploit chained authorization flaws in n8n's credential pipeline to steal plaintext secrets from generic HTTP credentials ( , , ) belonging to other users on the same instance. The attack abuses a name-based credential resolution path that does not enforce o

Sources

  • CVE.orgVulnerability recordCVE-2026-33663

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-33663

    30-day exploitation probability 0.5%

    first.org
  • NIST NVDVulnerability recordCVE-2026-33663

    n8n is an open source workflow automation platform. Prior to versions 2.14.1, 2.13.3, and 1.123.27, an authenticated user with the role could exploit chained authorization flaws in n8n's credential pipeline to steal plaintext secrets from generic HTTP credentials

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.