CVE•Published 2026-10-14•Modified 2026-10-15•0 articles on news•4 live references•NVD data
CVE-2026-110842
Vulnerability data via NVD (ingested)
CVSS v3.1
—
EPSS percentile
—
Description
n8n before 2.41.4 and 2.42.x before 2.42.1 contains a prototype pollution vulnerability in the MCP workflow-validation tool, whose interpreter evaluates caller-supplied code in the main process, reads inherited properties, and permits assignment onto shared prototypes. An authenticated member holding only a workflow:read grant can replace a built-in method with one returning a truthy value so server-side permission checks accept unheld scopes, enabling takeover of owner accounts not protected by MFA.
Timeline
Published 2026-10-14
Modified 2026-10-15
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-110842Hosts Shodan has explicitly fingerprinted as vulnerable.
More intel sources (5)
Shodan report
vuln:CVE-2026-110842Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-110842Censys host search filtered to this CVE id.
grep.app
CVE-2026-110842Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-110842GitHub code search for direct mentions.
Google dork
"CVE-2026-110842" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-110842 on GitHub.
We haven't classified any articles referencing CVE-2026-110842 yet. The external references above still apply.