CVE-2026-33663Network attack vector

Credential theft via name-based resolution bypass

Published Mar 25, 2026 · Updated Mar 25, 2026

Authorization bypass in affected n8n Community Edition releases allows remote authenticated users to steal other users' generic HTTP credentials. The name-based resolution path accepts a credential name without enforcing ownership or project scope, while pre-execution validation skips generic HTTP credential types. A global:member user who can create and run a workflow can resolve another user's credential ID and cause n8n to decrypt and use its secret; native integration credentials and Enterprise Edition are outside this path.

CVSS severity8.5
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Authorization bypass in affected n8n Community Edition releases allows remote authenticated users to steal other users' generic HTTP credentials. The name-based resolution path accepts a credential name without enforcing ownership or project scope, while pre-execution validation skips generic HTTP credential types. A global:member user who can create and run a workflow can resolve another user's credential ID and cause n8n to decrypt and use its secret; native integration credentials and Enterprise Edition are outside this path.

The record

CVE
CVE-2026-33663
Published
Mar 25, 2026
Updated
Mar 25, 2026
Vendor
n8n
Product
n8n
Classifications
CWE-639, T1555
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=< 1.123.27
  2. Affected versionversion=>= 2.0.0-rc.0, < 2.13.3
  3. Affected versionversion== 2.14.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

n8n · n8nversion=< 1.123.27; version=>= 2.0.0-rc.0, < 2.13.3; version== 2.14.0

Published CVSS scores

8.5GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1555Credentials from Password Stores

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo