Critical severity · published Jun 23, 2026
CVE-2026-54307
n8n: Credential Exfiltration via Permission Bypass
9.6
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
N8
n8n · n8n-io
< 1.123.55; >= 2.0.0-rc.0, < 2.25.7; >= 2.26.0, < 2.26.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-54307
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-54307
Mitigation
https://github.com/n8n-io/n8n/security/advisories/GHSA-pmqw-72cg-wx85
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