CVE-2026-110849: high-severity vulnerability in n8n-io n8n
n8n before 1.123.83, 2.41.4, and 2.42.1 Stored XSS via Binary-Data File Preview
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.2epss 0.2%
n8n before 1.123.83, 2.41.4, and 2.42.1 contains a stored cross-site scripting vulnerability in the file-preview modal, which re-publishes binary data as an unsandboxed same-origin blob URL. A member who uploads a crafted item can run script in the n8n origin of whoever previews it, typically the owner, and act with their session.
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Affected products
n8n-io · n8nRelated CVEs — n8n-io n8n
In the same product, most dangerous first.
CVE-2025-68613CRITICALn8n Vulnerable to Remote Code Execution via Expression InjectionEPSS 99.0%KEVCVE-2026-21858CRITICALn8n Vulnerable to Unauthenticated File Access via Improper Webhook Request HandlingEPSS 78.2%CVE-2025-68668CRITICALn8n Vulnerable to Arbitrary Command Execution in Pyodide based Python Code NodeEPSS 13.2%CVE-2026-27577CRITICALn8n: Expression Sandbox Escape Leads to RCEEPSS 10.7%CVE-2026-21877CRITICALn8n is vulnerable to Remote Code Execution via Arbitrary File WriteEPSS 5.4%CVE-2026-25055HIGHn8n Arbitrary File Write on Remote Systems via SSH NodeEPSS 1.9%