CVE-2026-54307

n8n: Credential Exfiltration via Permission Bypass

State: Published
Severity: 8.5 High
Published: Jun 23, 2026
Updated: Jun 23, 2026
Reserved: Jun 12, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	8.5 High	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	GitHub_M

Weaknesses

CWE-863 Incorrect Authorization

Affected Products

Product	Versions
n8nn8n-io	< 1.123.55Affected >= 2.0.0-rc.0, < 2.25.7Affected >= 2.26.0, < 2.26.2Affected

References

https://github.com/n8n-io/n8n/security/advisories/GHSA-pmqw-72cg-wx85

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