Medium severity5.4GHSA Advisory· Published Jun 23, 2026· Updated Jun 25, 2026
CVE-2026-54303
CVE-2026-54303
Description
n8n is an open source workflow automation platform. Prior to 2.24.0, an endpoint in the Meta and Microsoft Teams trigger nodes reflects a query parameter into the HTTP response without sanitization or Content-Security-Policy headers, enabling reflected XSS in the n8n origin when a logged-in user visits a crafted URL. This vulnerability is fixed in 2.24.0.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
n8nnpm | < 2.24.0 | 2.24.0 |
Affected products
1Patches
Vulnerability mechanics
References
3- github.com/advisories/GHSA-h86q-fx34-gfjrghsaADVISORY
- github.com/n8n-io/n8n/security/advisories/GHSA-h86q-fx34-gfjrnvdMitigationVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-54303ghsaADVISORY
News mentions
1- n8n: 16 CVEs Disclosed in Single Batch — Credential Leaks, Prototype Pollution, and Sandbox EscapeVypr Intelligence · Jun 16, 2026