CVE-2026-54307

Description

## 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. **Credits:** Momen Elkhouli

How to fix CVE-2026-54307

To remediate CVE-2026-54307, upgrade the affected package to a fixed version below.

• —upgrade to 1.123.55 or later

Is CVE-2026-54307 being exploited?

No exploitation signal available. Neither CISA KEV nor a current EPSS score has been published for CVE-2026-54307.

Affected packages (1)

• from 0, < 1.123.55

CVSS scores

References (2)

• PATCHgithub.com/n8n-io/n8n
• WEBgithub.com/n8n-io/n8n/security/advisories/GHSA-pmqw-72cg-wx85