GHSA-pmqw-72cg-wx85

Suggest an improvement
Source
https://github.com/advisories/GHSA-pmqw-72cg-wx85
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-pmqw-72cg-wx85/GHSA-pmqw-72cg-wx85.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-pmqw-72cg-wx85
Aliases
Downstream
Published
2026-06-16T23:02:05Z
Modified
2026-07-08T17:45:17Z
Severity
  • 9.6 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N CVSS Calculator
  • 8.5 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:L CVSS Calculator
Summary
n8n: Credential Exfiltration via Permission Bypass
Details

Impact

A member-level user with editor access to a shared workflow could reference credentials they do not own via specific public API endpoints. Credential ownership checks were only enforced partially leading to cross-user credential access.

This issue affects instances where workflow sharing is enabled and at least one workflow has been shared with a member-level user as an Editor.

Patches

The issue has been fixed in n8n versions 1.123.55, 2.25.7, and 2.26.2. Users should upgrade to one of these versions or later to remediate the vulnerability.

Workarounds

If upgrading is not immediately possible, administrators should consider the following temporary mitigations:

  • Restrict workflow sharing to fully trusted users only.
  • Audit shared workflows for unexpected credential references or recent modifications.

These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

n8n has adopted CVSS 4.0 as primary score for all security advisories. CVSS 3.1 vector strings are provided for backwards compatibility.

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

Database specific 
{
    "cwe_ids":  [
        "CWE-863"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-06-16T23:02:05Z",
    "nvd_published_at":  "2026-06-23T17:17:07Z",
    "severity":  "HIGH"
}
References

Affected packages

npm / n8n

Package

Name
n8n
View open source insights on deps.dev
Purl
pkg:npm/n8n

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.123.55

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-pmqw-72cg-wx85/GHSA-pmqw-72cg-wx85.json"

npm / n8n

Package

Name
n8n
View open source insights on deps.dev
Purl
pkg:npm/n8n

Affected ranges

Type
SEMVER
Events
Introduced
2.26.0
Fixed
2.26.2

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-pmqw-72cg-wx85/GHSA-pmqw-72cg-wx85.json"

npm / n8n

Package

Name
n8n
View open source insights on deps.dev
Purl
pkg:npm/n8n

Affected ranges

Type
SEMVER
Events
Introduced
2.0.0-rc.0
Fixed
2.25.7

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-pmqw-72cg-wx85/GHSA-pmqw-72cg-wx85.json"