Vulnerability details
CVE-2026-54307
n8n-io n8n
n8n: Credential Exfiltration via Permission Bypass
CVSS 4.0
8.5High
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.5High | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| n8n-io | n8n | < 1.123.55 | CVEProject cvelistV5 (CNA) |
| n8n-io | n8n | >= 2.0.0-rc.0, < 2.25.7 | CVEProject cvelistV5 (CNA) |
| n8n-io | n8n | >= 2.26.0, < 2.26.2 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://github.com/n8n-io/n8n/security/advisories/GHSA-pmqw-72cg-wx85 x_refsource_CONFIRM
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Details
- Published
- 2026-06-23
- Last updated
- 2026-06-23
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.38%
Probability of exploitation in 30 days
32.8%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-863Incorrect Authorization