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VulnerabilityCVE-2026-54308Published 2026-06-23

CVE-2026-54308 — n8n-io n8n

medium (derived)

As of 2026-06-24, CVE-2026-54308 is a Medium-severity (band derived from the CVSS v4.0 score, not stated by the CNA) vulnerability in n8n-io n8n, CVSS v4.0 6.3, EPSS 0.4% (33.6th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-54308 as of 2026-06-24; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

CVSS v4.0
6.3/10Medium (derived)
EPSS
0.4%Higher than 33.6% of scored CVEs
CISA KEV
NoNot in the KEV catalog
Tracked threats
0None linked yet
Priority
4.5/10Threadlinqs triage score
Published
Updated 2026-06-24
CVSS v4.0 6.3 (Medium, derived from score) · EPSS 0.4% (higher than 33.6% of all scored CVEs) · Priority 4.5/10 · Published 2026-06-23

Last updated:

What is CVE-2026-54308?

n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, the MicrosoftAgent365Trigger and StripeTrigger node did not validate that inbound requests. As a result, an unauthenticated attacker who knows the webhook URL could submit a forged payload and cause the workflow to execute with attacker-controlled data. This vulnerability is fixed in 2.25.7 and 2.26.2.

The record classifies CVE-2026-54308 under weakness class CWE-290. 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
6.3 — Medium (derived from score)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
EPSS (FIRST)
0.4% probability of exploitation in the next 30 days, higher than 33.6% of all scored CVEs
CISA KEV
Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority
4.5/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published
2026-06-23, last modified 2026-06-24

Is CVE-2026-54308 being exploited?

It currently carries a trending score of 38 in the Threadlinqs vulnerability feed.

Affected products and versions

Affected software packages:

  • npm:n8n — patched in 2.26.2
  • npm:n8n — patched in 2.25.7

How to fix CVE-2026-54308

Fixed versions are recorded for 2 packages: npm:n8n 2.26.2, npm:n8n 2.25.7. No vendor patch reference has been recorded for CVE-2026-54308 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-2026-54308

No threat campaign in the Threadlinqs corpus currently references CVE-2026-54308, 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.

Vendor advisory and patch