What is CVE-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 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.
The record classifies CVE-2026-54307 under weakness class CWE-863. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 104 days ago.
Severity and exploitation probability
- CVSS v4.0 base score
- 8.5 — High (derived from score)
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 - EPSS (FIRST)
- 0.3% probability of exploitation in the next 30 days, higher than 24.1% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 5.2/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-06-23
Is CVE-2026-54307 being exploited?
It currently carries a trending score of 35 in the Threadlinqs vulnerability feed.
Affected products and versions
- n8n-io: n8n
Affected software packages:
npm:n8n— patched in 1.123.55npm:n8n— patched in 2.26.2npm:n8n— patched in 2.25.7
How to fix CVE-2026-54307
Fixed versions are recorded for 3 packages: npm:n8n 1.123.55, npm:n8n 2.26.2, npm:n8n 2.25.7. No vendor patch reference has been recorded for CVE-2026-54307 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.
Threat activity tracking CVE-2026-54307
No threat campaign in the Threadlinqs corpus currently references CVE-2026-54307, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.
Sources
Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.