CVE-2026-54307
published 2026-06-23CVE-2026-54307: n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, a member-level user with editor access to a shared workflow could…
PriorityP263critical9.6CVSS 3.1
AVNACLPRLUINSCCHIHAN
EPSS
0.32%
23.1th percentile
n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, 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. This vulnerability is fixed in 1.123.55, 2.25.7, and 2.26.2.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| n8n-io | n8n | < 1.123.55 | 1.123.55 |
| n8n-io | n8n | — | — |
| n8n-io | n8n | — | — |
| n8n | n8n | < 1.123.55 | 1.123.55 |
| n8n | n8n | >= 0 < 1.123.55 | 1.123.55 |
| n8n | n8n | >= 2.0.0 < 2.25.7 | 2.25.7 |
| n8n | n8n | >= 2.0.0-rc.0 < 2.25.7 | 2.25.7 |
| n8n | n8n | >= 2.26.0 < 2.26.2 | 2.26.2 |
| n8n | n8n | >= 2.26.0 < 2.26.2 | 2.26.2 |
CVSS provenance
nvdv3.19.6CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
nvdv4.08.5HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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VulDB
n8n-io n8n up to 1.123.54/2.25.6/2.26.1 Specific Public API authorization (GHSA-pmqw-72cg-wx85)
vuldb·2026-06-24·CVSS 8.5
CVE-2026-54307 [HIGH] n8n-io n8n up to 1.123.54/2.25.6/2.26.1 Specific Public API authorization (GHSA-pmqw-72cg-wx85)
A vulnerability, which was classified as critical, has been found in n8n-io n8n up to 1.123.54/2.25.6/2.26.1. Affected by this vulnerability is an unknown functionality of the component Specific Public API. This manipulation causes incorrect authorization.
This vulnerability is tracked as CVE-2026-54307. The attack is possible to be carried out remotely. No exploit exists.
It is advisable to upgrade the affected component.
GHSA
n8n: Credential Exfiltration via Permission Bypass
ghsa·2026-06-16
CVE-2026-54307 [HIGH] CWE-863 n8n: Credential Exfiltration via Permission Bypass
n8n: Credential Exfiltration via Permission Bypass
## 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.
- A
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-06-23
Published